2-6 - Flashcard | StudyHippo.com

question

You want to implement an Ethernet network using the 1000BaseT standard using the minimum hardware specifications possible. Which of the following should you include in your plan? (Select two.)

answer

RJ-45 connectors Cat5e twisted pair cable

question

You are deploying a new 10GB Ethernet network using Cat6 cabling.Which of the following are true concerning this media? (Select two.)

answer

It supports 10 Mbps Ethernet connections. It includes a solid plastic core.

question

You need to connect several network devices together using twisted pair Ethernet cables. Assuming Auto-MDI/MDIX is not enabled on these devices, drag the appropriate type of cabling on the left to each connection type on the right.

answer

workstation to switch-ST router to swith-ST switch to switch-crossover workstation to router- crossover router to router-crossover

question

Match each characteristic on the left with the appropriate fiber optic connector on the right.

answer

MT-RJ use metal guide pins to ensure proper alignment LC use a connector that is half the size of other fiber optic connectors ST uses a bayonet-type connector SC uses a separate push -on, pull-off connector with a locking tab for each wire

question

Which of the following accurately describe how switches and hubs work

answer

switch use the hardware address in the frame to send it only to the port where the device is located. A hub repeats frames to all ports, regardless of the destination address.

question

Which of the following statements are true about bridges?(choose two.)

answer

bridges broadcast messages from one network segment to another. bridges connect two network segments with the same network address.

question

Which of the following best describe how a switch functions?(select two.)

answer

it connects multiple network segments and forwards packets to the appropriate segment. it filters the network traffic based on hardware addresses.

question

Which of the following are general advantages of using routers on your network?(select three.)

answer

router support multiple routing protocols for better flexibility. routers provide multiple links between devices to support load balancing. routers provide more features, such as flow control, error detection, and congestion control, than switches or bridges.

question

Which of the following is an advantage of using a bridge?

answer

Bridges can be used to increase the maximum physical distance of a LAN.

question

which of the following is a list of Layer 2 devices?

answer

bridge, network interface card, switch

question

You have been put in charge of connecting two company networks that were previously separated. you need to connect a 100BaseTx Ethernet work with an older token ring network.

answer

router

question

You are asked to design a LAN segmentation solution for company AGH. they have three workgroups, Accounting, Sales, and Service. most network traffic is localized within the individual workgroups...... which segmentation device meets the needs while providing the most economical and simplest administration?

answer

Router

question

You manage a small LAN for a branch office. the branch office has six file servers. you want to use full-duplex Ethernet and offer guaranteed bandwidth to each server. how should you design the network?

answer

Connect all network devices to a switch. Connect each server to its own switch port.

question

You have a small network with two switches, SwitchA and SwitchB...... You need to connect SwitchA and SwitchB so that workstations connected to SwitchA can communicate with workstations connected to SwitchB. Which should you do?

answer

Connect SwitchA and SwitchB to a router using a straight-through cable on each side.

question

You have a small network with two switches, SwitchA and SwitchB. Each switch has three client computers connected. IP address have been assigned to various devices as follows: device....... IP address......

answer

Connect SwitchA and SwitchB using a crossover cable

question

At which layer of the OSI model do network switches operate?

answer

data link

question

Which of the following are characteristics of a switch?(select two)

answer

a switch reads the MAC address in a frame and makes forwarding decisions based on that address. the collision domain on a switch is all devices connected to a single switch port.

question

You want to prevent collisions on your network by creating separate collision domains and defining virtual LANs. which of the following devices should you choose?

answer

switch

question

Which of the following methods helps to detect lost packets?(select two.)

answer

sequencing acknowledgement

question

How does TCP handle data sequencing?

answer

TCP breaks user data into segments, numbers each segment, places them in the correct sequence , and sends each one in order, waiting for an acknowledgement before sending the next segment.

question

Which two of the following lists accurately describes TCP and UDP?

answer

TCP: CONNECTION- ORIENTED, reliable, sequenced, high overhead UDP: connectionless, unreliable, unsequenced, low overhead

question

The following items describe the functions performed at various OSI model layers. 1. Logical topology, hardware addresses, media access, framing 2. Logical device identification, path identification and selection 3. Flow control, reliable data transfer, windowing, segmentation, and sequencing 4. Convert data to 0s and 1s, bit signaling and synchronization Which of the following correctly identifies the layers that perform each of the functions listed here?

answer

Data link, Network, Transport, Physical

question

Which of the following are functions of the MAC sublayer in the OSI model? (Select Two.)

answer

Defining a unique hardware address for each device on the network. Letting devices on the network have access to the LAN.

question

Workstation2 needs to send data to Workstation3. Identify the Layer 2 and Layer 3 address used by Workstation2 to send the data by dragging the corresponding address from the list on the left ot its location on the right.

answer

Layer 2 source address: 080046987654 Layer 3 source address: 192.168.10.12 Layer 2 destination address:000b5f2a2222 Layer 3 destination address: 192.168.11.11

question

Workstation3 has started communicating with Workstation2. It sends a frame to the default gateway. Identify the Layer 2 and Layer 3 addresses used by the Cisco 2600 router to forward the data to Worksation 2 by dragging the corresponding address from the list on the left to its location on the right.

answer

Layer 2 source address: 000b5f2a222 Layer 3 source address: 192.168.11.11 Layer 2 destination address: 080046987654 Layer 3 destination address: 192.168.10.12

question

What is the purpose of the CRC in network communications?

answer

Detect data errors

question

A client computer starts to download some files from an FTP server named FTPSrv1. While the first download is in progress, the user opens a second instance of the FTP program and initiates a second download. What does the server and the client use to keep each download separate?

answer

Session ID

question

An Internet server has a single network interface that has been assigned an IP address. The server is running both the FTP and HTTP services. A client computer initiates a session with the HTTP server. How is the HTTP request from the client routed to the correct service running on the server?

answer

Port or socket number

question

Which two of the following functions are performed by IP?

answer

Identifying hosts with the IP address Routing datagrams to hosts

question

Match the TCP/IP protocols with their function by dragging the protocol name on the left and dropping it next to the description on the right.

answer

Used to send e-mail messages between mail servers: SMTP Used to send messages to groups of users: IGMP Used to assign IP addresses to hosts: DHCP Used to get the MAC address of a host from its IP Address: ARP

question

Match the TCP/IP protocols with their function by dragging the protocol name on the left and dropping it next to the description on the right. (Choose two each.)

answer

Used to get the IP address of a host from a known MAC address: RARP and BOOTP Used to transfer files: FTP and TFTP Used to identify routes through an internetwork: RIP and OSPF

question

The following names are given to data at various stages in the encapsulation process. 1. Packets 2. Bits 3. Segments 4. Frames To which layer of the OSI model do the names correspond?

answer

Network, Physical, Transport, Data Link

question

Drag each layer of the TCP/IP model on the left to the networking componenet associated with it on the right. Each layer of the TCP/IP model may be used once, more than once or not at all.

answer

Host IP addresses: Internet Layer Sequencing Information: Transport Layer MAC Addresses: Link Layer Acknowledgments: Transport Layer Network addresses: Internet Layer

question

Drag the information type on the left to the appropriate layer of the TCP/IP model that it is associated with on the right.

answer

Transport Layer: Segments Link layer: Frames Application Layer: Data Internet Layer: Packets

question

Drag the information type on the left to the appropriate layer of the OSI model that it is associated with on the right.

answer

Network Layer: Packets Data Link Layer: Frames Physical Layer: Bits Transport Layer: Segments Application Layer: Data

question

What role does ARP play in the routing process?

answer

If a router does not know a destination device's MAC address, it sends an ARP broadcast containing the IP address and requesting the MAC address.

question

Workstation2 needs to send data to Workstation3. It sends out an ARP request for the address of the default gateway. Which of the following are true of this request? (Select two.)

answer

Only the router will respond with an address of 000b5f2a2222. The switch sends the ARP request to Workstation1 and the router.

question

Routing data between computers on a network requires several mappings between different addresses. Which of the following statements is true?

answer

Routers use ARP to resolve known IP addresses into MAC addresses by broadcasting requests to the network.

question

A host wants to send a message to another host with the IP address 115.99.80.157. The host does not know the hardware address of the destination device. Which protocol can be used to discover the MAC address?

answer

ARP

question

You have several hosts, a switch and a router shown in the exhibit. Workstation1 sends an IP packet containing a text document to Workstation2. Which destination address does Workstation1 put in the Ethernet frame header of the packet containing the text document?

answer

080046987654

question

You have several hosts, a switch and a router as shown in the exhibit. Workstation1 sends an IP packet containing a photograph to Workstation3. Which destination MAC address does Workstation1 use?

answer

000b5f2a2222

question

You have several hosts, a switch and a router as shown in the exhibit. Workstation1 sends an IP packet to Workstation3. When the packet reaches Workstation3, which source addresses are in the frame and packet? (Select two.)

answer

Source IP address = 192.168.10.11 Source MAC address = 000b5f2a2223

question

You have several hosts, a switch and a router as shown in the exhibit. Workstation3 sends an IP packet to Workstation1. The packet is received by the Cisco 2600 router as shown in the diagram. When the packet leaves the route, which source and destination IP address will be contained in the IP packet? (select two.)

answer

Destination IP address = 192.168.10.11 Source IP address = 192.168.11.11

question

You have several hosts, a switch and a router as shown in the exhibit. Workstation2 sends an IP packet to Workstation3. Which default gateway address is used by Workstation2?

answer

192.168.10.1

question

You want to implement an Ethernet network using the 100Base-FX standard using the minimum hardware specifications possible. You need to support distances of up to 1,000 meters. Which of the following should you include in your plan? (Select two.)

answer

SC connectors Single-mode fiber optic cable

question

You manage a small network with two buildings, 1,000 meters apart. You want to connect the two buildings together with a switch. You are concerned about electromagnetic interference on the cable connecting the two buildings. What should you include in your plan? (Select two.)

answer

1000BaseLX Ethernet Fiber optic cables with LC connectors

question

You have two Cisco 2960 switches, each with 24 FastEthernet ports and two SFP Gigabit uplink ports. You want to connect the two switches together at a distance of 300 meters. How should you connect the two switches? (Select two.)

answer

Use ports Gi0/1 or Gi0/2 Use fiber optic cables with LC connectors

question

Which two of the following statements accurately describe full-duplex Ethernet?

answer

It uses direct point-to-point connections between the sender and receiver. It is collision free.

question

Which two of the following statements accurately describe half-duplex Ethernet?

answer

It uses collision detection and recovery. It sends both signals along the same wire.

question

You want to enable full duplex on your Ethernet network. Which of the following should you do?

answer

Configure NICs and switch interfaces to use full duplex.

question

An Ethernet network meets the specification for Ethernet 1000BaseT. A single server is connected to a port on the switch. The switch port is configured for auto-detect. What is the available bandwidth on the server cable segment?

answer

1000 Mbps if the server NIC is half duplex; 2000 Mbps if the server NIC is set to full duplex

question

What is the backoff on an Ethernet network?

answer

It is the random amount of time a device waits before retransmitting after a collision.

question

Which of the following mechanisms are used on Ethernet networks to control access to the transmission medium? (Select two.)

answer

Collision detection Backoff

question

What is the first thing that happens when a collision occurs on an Ethernet network?

answer

The device that detected the collision transmits a jam signal.

question

Which of the following is true of CSMA/CD? (Select two.)

answer

A device with data to send first listens to the transmission medium to determine if it is free. If collisions are detected, an interrupt jam signal is broadcast to stop all transmissions.

question

Which of the following are true about Gigabit Ethernet? (Select two.)

answer

Uses CSMA/CD Can use both copper and fiber optic

question

You have a Cisco router with an integrated CSU/DSU. Which of the following connector types will you most likely use to connect the router to the WAN service?

answer

RJ-48

question

Shown here is a diagram of the back of a sample router. Which port would you use if you wanted to connect the router to a CSU/DSU using a serial connection?

answer

DB-60

question

Shown below is a diagram of the back of a sample router. Match the connector type with the router port.

answer

Serial0: Smart Serial FE 0/0: RJ-45 Console: RJ-45 T1 DSU/CSU: RJ-48

question

You have a Cisco router with a single WIC that has two serial ports. You will connect the router to an external CSU/DSU. Which of the following cables and connectors will you most likely use to connect the router to the CSU/DSU?

answer

Smart Serial DTE cable

question

Shown here is a diagram of the back of a sample router. If Port E is a serial port, what type of cable and connector would you use to connect the router to an another router if this router provides the clocking signal?

answer

DB-60 serial DCE cable

question

Which four of the following are the responsibility of the WAN service provider?

answer

CO DCE Local loop PSE

question

Which type of network divides data to be transmitted into small units and then routes these units from the originating system to the destination system, allowing multiple, concurrent communications on the network medium?

answer

Packet-switched

question

Which type of network establishes a dedicated physical connection between two hosts who need to communicate on the network, not allowing any other host to use the medium until the communications is complete?

answer

Circuit-switched

question

Which of the following WAN technologies provides packet switching over high-quality digital lines at speeds up to 1.544 Mbps or greater?

answer

Frame Relay

question

Which WAN connection types use digital communications over public telephone lines? (Select two.)

answer

DSL and ISDN

question

Which of the following WAN technologies is a dial-up only service?

answer

ISDN BRI

question

Which of the following correctly describes the T1 carrier system? (Select two.)

answer

T1 lines use two pairs of copper wire. A single T1 channel can transfer data at 64 Kbps.

question

You are implementing Internet connectivity for a new start-up company. Your client will provide online storefronts for retailers. To do this, they have calculated that their Internet connection must provide a data rate of at least 20-30 Mbps. Which type of service should you implement?

answer

T3

question

While working at the console of a Cisco device, you need to view a list of the commands that are available in the current mode. Which command should you use?

answer

?

question

While working at the console of a Cisco device, you need to view a list of the commands that are currently stored in the history buffer of the system. Which command should you use?

answer

show history

question

While working at the console of a Cisco device, you need use the same command repeatedly. Given that the command is quite long, what can you do to avoid having to retype it over and over?

answer

Press the Up-arrow key.

question

In the lab, click the switch icon to open the switch console. Then use the command line interface to find the information necessary to answer the following question: Which privileged EXEC commands begin with the letters ac? (Select all that apply.)

answer

access-enable access-template

question

In the lab, click the switch icon to open the switch console. Then use the command line interface to find the information necessary to answer the following question: Which of the following does the privileged exec show lacp command provide information about?

answer

Port channel information

question

In the lab, click the switch icon to open the switch console. Then use the command line interface to find the information necessary to answer the following question: How many commands in global configuration mode begin with the letters de?

answer

3 (define, default, and default-value)

question

Which of the following partial commands are unique, first-level commands in global configuration mode (i.e. recognized as valid commands without typing additional characters)? (Select all that apply.)

answer

al q rm

question

Which of the following parameters are valid second-level parameters for the ip command in FastEthernet interface configuration mode? (Select all that apply.)

answer

access-group dhcp igmp

question

Which of the following commands are complete commands (i.e. they do not require additional parameters or keywords)? (Select all that apply.)

answer

Branch1#show version Branch1#conf t Branch1 (config-if) #duplex half

question

A Cisco router boots but cannot locate a valid IOS image in flash memory or on a TFTP server. Assuming the default configuration, what will the router do next?

answer

Enter ROM monitor mode

question

You want to save the configuration file in NVRAM to a TFTP server with address 192.168.1.10 to be used as a backup. Which command would you use?

answer

copy start tftp

question

Which two of the following commands can you use to copy files from a TFTP server with address 10.0.0.5 to a router?

answer

copy tftp start copy tftp run

question

Which command do you use to copy a file named ATL-1.cfg on the TFTP server to the running-config on the router?

answer

copy tftp run

question

For each operation listed on the right, drag and drop the corresponding command from the list on the left.

answer

Save current configuration to NVRAM: copy run start Load the current configuration saved in NVRAM into memory: copy start run Save the current configuration to a network server: copy run tftp Copy a configuration file from a network server into NVRAM: copy tftp start

question

You need to back up the current IOS image on your router to the TFTP server. The TFTP server's IP address is 192.56.145.23. Which of the following commands do you use?

answer

copy flash tftp

question

Which of the following configuration register values tells the router to use configuration information from NVRAM?

answer

0x2102

question

Listed on the right are various connections between networking devices. For each connection, drag a cable type from the left to match it with the connection type.

answer

Connect a workstation to a switch: Ethernet straight-through cable Connect a workstation to a console port on a Cisco device: Rollover cable Connect a hub to a switch: Ethernet crossover cable Connect a router to a switch:Ethernet straight-through cable Connect a switch to a switch: Ethernet crossover cable Connect a workstation to a router: Ethernet crossover cable

question

Each connection in the Exhibit is labeled A-G. Drag the cable type from the left that you would use to make each connection type.

answer

Connection A: Ethernet straight-through cable Connection B: Ethernet crossover cable Connection C: Ethernet straight-through cable Connection D: Rollover cable Connection E: Ethernet crossover cable Connection F: Ethernet straight-through cable Connection G: Ethernet crossover cable

question

You are a field technician for a large company. You have been sent to a remote site to troubleshoot a downed router. When you arrive at the remote site, how will you connect your laptop to the router? (Select two.)

answer

Connect the laptop's Ethernet port to the router's Ethernet port using a crossover cable Connect the laptop's COM port to the router's console port using a rollover cable.

question

Shown here is a diagram of the back of a sample router. If port C is the console port, what type of cable and connector would you use to connect to the console port?

answer

RJ-45 rollover cable

question

You need to connect a PC to the router console port to establish a console connection. For each of the parameters listed below, select the appropriate parameter to establish the connection.

answer

Baud rate: 9600 Data: 8 Bit Parity: None Stop: 1 bit Flow control: None

question

You want to make a console connection to a router using the serial port on a PC. Select the necessary components to make the console connection. Select only the necessary components.

answer

Rollover cable Console port Terminal emulation program

question

You want to establish a console session to a new router using a Telnet session. Which of the following components will you need? (Select three.)

answer

Ethernet cable Ethernet port IP address

question

When the router boots, it looks for the IOS image in the following locations: ROM Flash Locations specified by the boot system statements in startup-config Default TFTP server In what order are these locations checked?

answer

boot system statements, flash, TFTP server, ROM

question

Which items are held in a router's RAM? (Select three.)

answer

Log file entries The current router configuration file Routing table entries

question

Which can be stored in NVRAM on a Cisco device? (Select two.)

answer

full IOS image startup-config file

question

Which of the following is true of the system ROM on a Cisco device?

answer

It holds a limited version of the IOS software to be used if the full IOS image can't be found.

question

A Cisco router boots but cannot locate the startup-config file. Assuming the default configuration, what will the router do next?

answer

Enter the setup mode

question

Listed below are three banner types can be configured on a router. exec motd login if all three banners were configured, in which order would they display when a Telnet session is used to connect to the router?

answer

motd, login, exec

question

you have used the following commands to configure your router: Router(config)#banner exec *Have a nice day!* Router(config)#banner login*the grass grows green* Router(config)#banner motd *the sky is blue* when you connect to the router using a telnet session, how will these banners display?

answer

1. the sky is blue 2. the grass grows green passord: have a nice day

question

When you start up your router, you see the following messages: have a nice day the grass grows green user access verification password: the sky is blue router> for secuity purposes, you would like to change the message the sky is blue to read all activity is monitored. which command should you use?

answer

banner exec * All activity is monitored*

question

When you start up your router, you see the following messages: have a nice day the grass grows green user access verification password: the sky is blue router> for secuity purposes, you would like to change the message The grass grows green to read only administrator access is allowed. which command should you use?

answer

banner login *Only administrator access is allowed*

question

You are troubleshooting a router ar the console. you issued the following command at the CLI: PDX#DEBUG ARP you see debug output, but the output scrolls past faster than you can read. what two commands allow you to view debug output one page at a time?(select two.)

answer

logging buffered show log

question

You have a test lab that you use to test different configurations before deploying them in your live network. you have been testing several commands from configuration mode, then going back to enable mode to view the running-configuration. Every time you exit configuration mode,the following output is displayed: %sys-5-config....... what command can stop these messages from appearing on your screen?

answer

no logging console

question

How does configuring banners add to the security of your router?

answer

Banners provide a notice of intent, informing users that access is controlled or that activity may be logged.

question

you have a PC that you connect to the ethernet network and which you use to create a console connection to the router through a Telnet session. you want to require a password before the Telnet session is allowed.

answer

enter global configuration mode router#config t enter configuration mode for Telnet sessions router (config)#line vty 0 4 set the password router(config-line)#password cisco require the password for login router(config-line)#login

question

which of the following is the most important thing to do to prevent console access to the router?

answer

keep the router in a locked room

question

you want to prevent users from accessing a router through a Telnet session. what should you do?

answer

for the VTY lines, add the login parameter and remove any passwords.

question

you want users to enter a password before being able to access the router through a Telnet session. you use the following commands: router config t router config #line vty 0 4 router config-line password cisco exit exit

answer

in line configuration mode, add the login parameter

question

shown below is a partial configuration for a router as shown by the show run command. ! line con 0 exec-timeout 0 0 password cisco login line aux 0 line vty 0 4 ......!

answer

access to the router through a Telnet session is allowed without suing a password. access to the console require the use of cisco for the password

question

which of the following commands configures a password to switch to privileged exec mode and saves the password using MD5 hashing

answer

enable secret

question

you have configured ppp with chap authentication on the BRI0 interface of you router. you now want to hide the Chap password from view in the configuration file. what command should you use?

answer

service password-encryption

question

which of the following measures can you implement to help secure access to a router through the con 0 line?(select two.)

answer

keep the router in a locked room set a password and use the login command

question

you have established an SSH connection to your router. you use the following command and receive the error message shown: router>enable %error in authentication which command would correct the problem?

answer

routerA(config)#enable secret cisco

question

what is the main security weakness in using the service password-encryption command?

answer

passwords can be easily broken

question

while configuring a new router, you use the following commands: enable password cisco enable secret highway line con 0 password airplane login line vty 0 4 password garage login you establish a telnet session to the router. which password would you use to enter privileged exec mode?

answer

highway

question

while configuring a new router, you use the following commands: enable password cisco enable secret highway line con 0 password airplane login line vty 0 4 password garage login which password would you use to open a Telnet session to the router?

answer

garage

question

you have just received a new cisco 2960 series switch and need to complete an initial configuration. complete the following configuration tasks: set the host name to NVOFFICE

answer

enable conf t hostname nyoffice1960 encre

question

You have used a set of bridges and routers to segment your LAN into smaller networks. What results will you get? (Select two.)

answer

Decreased congestion on each segment. Increased number of collision domains.

question

Which of the following are results of using a router to segment a network? (Select two.)

answer

Fewer devices per broadcast domain. Increased number of collision domains.

question

You have implemented a network switch. Each switch port is connected to a workstation or server host. Which of the following is not true regarding this implementation?

answer

The broadcast domain is reduced to only one device.

question

Which two of the following accurately describe cut-through switching?

answer

The switch copies only the destination address of the frame into its buffer. The switch reduces latency by forwarding the frame almost immediately.

question

Which statement best describes the fragment-free switching method?

answer

The switch reads the first 64 bytes of the frame, verifies that a collision has not occurred, and switches the frame to the correct port.

question

Which of the following are true of store-and-forward switches? (Select three.)

answer

Latency is greater than with cut-through switches. Frames are checked for errors before being forwarded. Frames with errors are dropped.

question

You have a network consisting of routers, switches, a hub, and workstations connected as shown in the graphic. No VLANs have been configured. How many broadcast domains exist in this network?

answer

4

question

You have a network consisting of routers, switches, a hub, and workstations connected as shown in the graphic. No VLANs have been configured. How many collision domains exist in this network?

answer

4

question

Device B sends a message to Device C on the network shown in the Exhibit. The switch does not have an entry for Device C in its CAM table. What does the switch do with the message?

answer

The switch does not record the location of Device C. It forwards the frame out all ports except port Fa0/2.

question

Device B sends a frame to Device A on the network shown in the Exhibit. The switch has an entry in its CAM table for Device A in its database, but not for Device B. Which of the following best describes what the switch does with the message?

answer

The switch records the address and port for Device B in its database. It sends the frame out port Fa0/1.

question

Device B sends a frame to Device A on the network shown in the Exhibit. The switch has an entry for Device B, but not for Device A in its CAM table. Which of the following best describes what the switch does with the frame?

answer

The switch sends the frame out all ports except for port Fa0/2.

question

You have a new switch that you have just connected to the network as shown in the Exhibit. After connecting the switch to the network: Host A sends a frame addressed to Host D Host B sends a frame addressed to Host A Host B sends a frame addressed to Host C Which information will the switch have after these frames have been sent?

answer

Host A is on Fa0/1 and Host B is on Fa0/2.

question

You have a new switch that you have just connected to the network as shown in the Exhibit. After connecting the switch to the network: Host A sends a frame addressed to Host D Host B sends a frame addressed to Host A Host B sends a frame addressed to Host C The switch recieves a frame on Fa0/3 addressed to the MAC address of Host D. What will the switch do?

answer

Record the MAC address of Host C, then forward the frame out all ports except Fa0/3.

question

You have a switch connected to a small network as shown in the Exhibit. A hub connects Wrk1 and Wrk5 to the switch. The switch has the following information in its CAM table: Fa0/1 Wrk1 Fa0/2 -- Fa0/3 Wrk3 Fa0/4 -- Wrk1 sends a frame addressed to Wrk5. What will the switch do with the frame? (Select two.)

answer

Forward the frame out all ports except Fa0/1. It will not record the location of any device.

question

You have a switch connected to a small network as shown in the Exhibit. A hub connects Wrk1 and Wrk5 to the switch. The switch has the following information in its CAM table: Fa0/1 Wrk1/Wrk5 Fa0/2 -- Fa0/3 Wrk3 Fa0/4 -- Wrk1 sends a frame addressed to Wrk5. What will the switch do with the frame? (Select two.)

answer

It will not record the location of any device. Drop the frame.

question

What problem does the Spanning Tree Protocol prevent?

answer

It prevents message loops from developing when a switch or bridge is connected to the same location more than once.

question

Which of the following are advantages of using the Spanning Tree Protocol (STP) in the network segmented bridges? (Select three.)

answer

STP prevents message loops from forming. STP lets you provide redundancy by using more than one connection between devices, which makes your network more stable. STP identifies the most efficient path through a bridged network.

question

Which statements accurately describe port states of both bridges and switches? (Select two.)

answer

Ports in a blocked state still receive BPDUs. In the learning state, the MAC address table can be populated but frames are not forwarded.

question

A switch running STA is a backup bridge. What state is it in?

answer

Blocking

question

Switches running the STA are in the process of exchanging BPDUs and defining their roles. In what state are the switches?

answer

Listening

question

A switch running the STA is in the learning state. A message arrives at the switch destined for a different network segment. Which of the following best describes what the switch will do?

answer

It places the source address and segment in its database, but does not forward the message.

question

A switch running STA is in the listening state. A message arrives at the switch destined for a different network segment. Which of the following best describes what the switch will do?

answer

It does not record address or segment information. It does not forward the message.

question

You have just connected four switches as shown in the Exhibit. Assuming the default switch configuration, which switch will become the root bridge?

answer

B

question

You have two switches connected as shown in the Exhibit. You would like to configure rapid spanning tree on switch A. On which ports would you use the portfast feature?

answer

Fa0/1 and Fa0/2

question

You just connected four switches as shown in the Exhibit. Assuming the default switch configuration, how can you force switch C to become the root bridge?

answer

Configure a priority number of 4096 for switch C.

question

You have three switches configured as shown in the Exhibit. How could you guarantee that switch C becomes the root bridge?

answer

Configure switch C with a lower priority value.

question

Consider the network shown in the exhibit. You have been experiencing intermittent connectivity issues with switch2. To check the status of the interfaces you run the following commands: What is the issue with this network?

answer

The device connected to the Fa0/1 interface has auto-negotiation disabled.

question

A workstation is connected to a switch on the Gi0/2 interface using a straight through cable. The Ethernet interface in the workstation has been manually configured to use a 100 Mbps link speed and full duplexing. Which of the following are true in this scenario? (Select three.)

answer

If the link speed is 1000 Mbps or faster, full-duplex is used. If the link speed is 10 Mbps or 100 Mbps, half-duplex is used. The switch attempts to sense the link speed. If it can't, the slowest link speed supported on the interface is selected.

question

You need to configure the FastEthernet 0/1 interface on a switch to automatically detect the appropriate link speed and duplex setting by negotiating with the device connected to the other end of the link. Drag the command on the left to the appropriate configuration step on the right to accomplish this. Not all of the commands may be required.

answer

Enter global configuration mode: conf t Enter interface configuration mode: int fa0/1 Set the speed of the interface: speed auto Set the duplex setting for the interface: duplex auto

question

You need to disable the FastEthernet 0/0 interface on a switch. Drag the command on the left to the appropriate configuration step on the right to accomplish this. Not all of the commands may be required.

answer

Enter global configuration mode: conf t Enter interface configuration mode: int fa0/0 Disable the interface: shutdown Verify the interface is disabled: show ip interface brief

question

The FastEthernet 0/0 interface on a switch is currently disabled. You need to enable it so a workstation can be connected to it. Drag the command on the left to the appropriate configuration step on the right to accomplish this. Not all of the commands may be required.

answer

Enter global configuration mode: conf t Enter interface configuration mode: int fa0/0 Verify the interface is disabled: show interface status Enable the interface: no shut

question

You have a small network connected to the Internet as shown in the Exhibit. You need to configure the default gateway address on Wrk1 so that it can communicate with the hosts on the Internet. Which address would you use for the default gateway address?

answer

The IP address assigned to Fa0/0 on Router 1

question

You have a small network as shown in the Exhibit. You have configured the IP address and subnet mask on Wrk1. You want to be able to use Wrk1 to browse the Internet to connect to sites like www.cisco.com. What other parameters are required on the workstation? (Select two.)

answer

Default gateway DNS server address

question

You have a small network with a single subnet connected to the Internet as shown in the Exhibit. The router has been assigned the two addresses shown. You need to manually configure the workstation to connect to the network. The workstation should use RouterA as the default gateway, and DNS1 as the DNS server address. From the drop-down lists, select the appropriate paramteres to configure the workstation's TCP/IP settings.

answer

IP Address: 192.168.12.46 Subnet Mask: 255.255.255.240 Default Gateway: 192.168.12.34 DNS Server: 192.162.1.22

question

Which command(s) would you use to configure a default gateway on a Catalyst 2950XL switch?

answer

Switch (config) #ip default-gateway 192.168.10.1

question

You must configure an IP address on a Catalyst 2950XL switch using the default management switch port. From global configuration mode, which commands would you enter to configure the correct management port?

answer

int vlan 1 ip address 192.168.10.2 255.255.255.0

question

You are the only network administrator for your company. You are planning for an upcoming vacation and need to ensure that you can administer your switches remotely while you are gone. What must you configure to allow remote administration? (Choose two.)

answer

The switch must be configured with a valid IP address and default gateway. The remote workstations must have access to the management VLAN of the switch.

question

You have a workstation configured with DNS server addresses as follows: Primary DNS server = 192.168.1.1 Alternate DNS server = 192.168.1.155 While browsing the Internet, you go to www.cisco.com. A few minutes later, you type ping www.cisco.com into a command prompt. How will the workstation get the IP address for www.cisco.com?

answer

Out of its local DNS cache

question

Listed below are several places that a workstation checks to resolve DNS host names. A. Primary DNS server B. Secondary DNS servers C. HOSTS file D. Local DNS cache In a browser, you type the name of a website. In which order will these locations be checked during teh name resolution process?

answer

D, C, A, B

question

You would like to see what host names have been cached on your router. Which command displays the cached list of host names?

answer

Show hosts

question

For each operation on the right, match the appropriate command from the list on the left.

answer

Configure DNS server address for the router to use for resolve host names: ip name-server Create static entries for hosts, associating a host name with an IP address: ip host Prevent the router from using DNS to resolve host names: no ip domain-lookup Set the DNS name used by the router: hostname

question

You have just started a Cisco 2960 switch. You notice that the system light is a solid amber color. What does this indicate?

answer

The system has power but is not functioning properly.

question

You are checking the status of port Fa0/12 on your Cisco 2960 switch. A cable has been plugged in to the port and is connected to a device. You press the Mode button to select Stat, Duplex, and Speed. Each time the port light remains off. Which of the following is true?

answer

The port is shut down or the cable is bad.

question

You are checking the status of port Gi0/1 on your Cisco switch. A cable has been plugged in to the port and is connected to a device. You press the Mode button to select Stat, Duplex, and Speed. The results are shown below: Stat = Flashing green. Duplex = Solid green. Speend = Flashing green. Which of the following are true? (Select two.)

answer

The port is operating in full-duplex mode. The port speed is 1000 Mbps.

question

Wrk1 is connected to port Fa0/16 on your Cisco 2960 switch. The user complains that she can't access the network server. You verify that a cable is connected to the Fa0/16 port on the switch. You press the Mode button to select Stat, Duplex, and Speed. Each time the port light remains off. Which command would most likely correct the problem?

answer

no shutdown

question

Wrk1 is connected to port Fa0/16 on your Cisco 2960 switch. A cable has been plugged in to the port and is connected to a device. You press the Mode button to select Stat, and the port light alternately flashes amber green. What should you do to correct the problem?

answer

Check the NIC in Wrk1 for frame errors or excessive collisions.

question

Which of the following are reasons to configure VLANs on a switch as opposed to using switches without VLANs? (Select two.)

answer

Increased number of broadcast domains. Increased security.

question

You have two switches connected together as shown in the following diagram. How many broadcast domains are there in the network shown?

answer

2

question

Which of the following benefits apply only to creating VLANs with switches and not to segmenting the network with regular switches?

answer

You can create multiple broadcast domains.

question

Which of the following statements describe how VLANs affect broadcast traffic within an internetwork? (Select two.)

answer

Broadcast traffic is transmitted only within a VLAN. Devices on the same VLAN have the same subnet address.

question

Which of the following are true regarding using multiple VLANs on a single switch? (Select two.)

answer

The number of broadcast domains increases. The number of collision domains remains the same.

question

Which interface is a member of VLAN 65?

answer

Fa0/22

question

Computers A and B are on the same VLAN and are seperated by two switches, as shown in the exhibit. Computer A sends a frame to Computer B. Which of the following best describes the compositions of teh frame as it travels from A to B?

answer

Computer A sends a normal frame. The first switch appends a VLAN ID to the frame. The second switch removes the VLAN ID before forwarding it to Computer B.

question

Which of the following statements accurately describes a VLAN ID?

answer

Switches append a VLAN ID to the header of each frame to identify the virtual network to which it belongs.

question

What primary advantages does the 802.1Q Trunking Protocol offer compared to ISL? (Choose two.)

answer

IEEE standard Can be used with a mix of Cisco and non-Cisco devices

question

You've just enabled trunking on the fa0/1 port of a Catalyst 2960 switch. By default, what traffic can now be sent across this interface?

answer

Only 802.1Q traffic

question

Switch B is a Catalyst 2924 switch you're configuring to support VLAN trunking. Switch B is both ISL and 802.1Q capable. Switch A is encapsulating 802.1Q. You want Switch B's port to be in trunk mode regardless of the mode configured on Switch A. Which commands should you use to configure the trunk port on Switch B? (Choose two.)

answer

switchport trunk encapsulation dot1q switchport mode trunk

question

Review the exhibit to answer the following question. You would like to manually configure the trunk status on each port for switch A so that the appropriate type is selected and so that a trunking protocol is not used. Match the command on the left with the correct port on switch A.

answer

Interface Fa0/1: switchport mode access Interface Fa0/2: switchport mode access Interface Fa0/3: switchport mode trunk Interface Fa0/4: switchport mode access

question

You want to make interface fa0/2 a memeber of VLAN2 on a Catalyst 2950XL switch. Which commands must you enter? (Select two.)

answer

int fastEthernet 0/2 switchport access vlan 2

question

You have a small network with four switches as shown in the diagram. Which of the following are true? (Select two.)

answer

Fa0/2 on switch B is a trunk port. Fa0/3 on switch B is an access port

question

You are implementing a static VLAN trunking configuration on a Catalyst 3550 switch. You would like to keep the switch from tagging packets from VLAN 3 as they leave FastEthernet 0/1. Which command(s) would you use?

answer

Switch (config) #int fa 0/1 Switch (config-if) #switchport mode trunk Switch (config-if) #switchport trunk native vlan 3

question

You are implementing a static VLAN trunking configuration on a Catalyst 3550 switch. You would like to keep the switch from forwarding packets from VLAN 3 as they leave FastEthernet 0/1. Which command(s) would you use?

answer

Switch (config) #int fa 0/1 Switch (config-if) #switchport mode trunk Switch (config-if) #switchport trunk allowed vlan remove 3

question

Which of the following is true concerning the native VLAN and VLAN trunking? (Select three.)

answer

With 802.1Q trunking, frames from the native VLAN are not tagged. If the native VLAN on one end of the trunk is different than the native VLAN on the other end, the traffic of the native VLANs on both sides cannot be transmitted correctly on the trunk. Frames are placed into the native VLAN when they enter an 802.1Q trunking interface but do not have an 802.1Q header.

question

After using the show run command on a 2960 Cisco switch, you recieve the following output. Which of the following is true?

answer

Both FastEthernet 0/9 and 0/10 are configured as unconditional access ports.

question

You want to get a list of all ports on your switch that are currently trunking. Which command should you use?

answer

show interface trunk

question

You want to verify that trunking is enabled between the Catalyst 2950XL switch and the Cisco 2600 router. Which command must you enter?

answer

show interface fa0/1 trunk

question

Lab

answer

Use the following commands: enable conf t interface range fa0/20 - 23 , gi0/1 - 2 switchport mode trunk interface range fa0/1 - 19 , fa0/24 switchport mode access Ctrl+Z copy run start

question

You are the network administrator for a city library. Throughout the library are several groups of computers that provide public access to the Internet. Supervision of these computers has been difficult. You've had problems with patrons bringing personal laptops into the library and disconnecting the network cables from the library computers to connect their laptops to the Internet. The library computers are in groups of four. Each group of four computers is connected to a hub that is connected to the library network through an access port on a Catalyst 2960 switch. You want to restrict access to the network so only the library computers are permitted connectivity to the Internet. What can you do?

answer

Configure port security on the switch.

question

You've just enabled port security on an interface of a Catalyst 2950 switch. You want to generate an SNMP trap whenever a violation occurs. Which feature should you enable?

answer

restrict

question

What are the default switchport configuration parameters on a 2960 switch? (Select two.)

answer

A maximum of 1 MAC address per port is allowed. Violation action is set to shutdown.

question

You are configuring a new 2960 switch. You issue the following commands: interface fast 0/15 switchport mode access switchport port-security switchport port-security maximum 1 switchport port-security mac-address sticky switchport port-security violation protect You connect a hub with two workstations to port Fa0/15. You power on first Device1 and then Device2. What will be the result?

answer

Frames from Device1 will be allowed; frames from Device2 will be dropped.

question

You have a Catalyst 2960 switch on a small local area network with one server and five workstations. The file server is named SrvFS and is connected to port Fa0/17 on the switch. You want to make sure that only this server can connect to port Fa0/17, but that it can send and receive frames from the five workstations on the network. What should you do?

answer

Configure switchport security on Fa0/17 to allow only the MAC address of SrvFS.

question

You have a Catalyst 2960 switch on a small local area network with one server and five workstations. The file server is named SrvFS and is connected to port Fa0/17 on the switch. You want to make sure that only this server can connect to port Fa0/17. If any unauthorized devices attempt to attach, you want to disable the port until you manually re-enable it. On Fa0/17, you use the switchport port-security mac-address command to identify the MAC address of the server. What else should you include in your configuration? (Select two.)

answer

switchport port-security violation shutdown switchport port-security maximum 1

question

You have a switch that has port security on the Fa0/3 interface. The output of the show port-security interface fa0/3 command is shown below: What is true of the configuration? (Select two.)

answer

The port allows up to two connected devices. The port has learned one MAC address and saved that address in the running-config file.

question

You have a switch that has port security on the Fa0/3 interface. The output of the show port-security interface fa0/3 command is shown below: What is true of the configuration? (Select two.)

answer

The port has been disabled because too many MAC addresses have been detected.

question

You have configured port security for the Fa0/3 interface. To test the security settings, you connect two workstations to the same port. Both are allowed to connect. You check the running-config file and find the following for the interface: interface FastEthernet0/3 switchport mode access switchport port-security mac-address sticky You want to allow only a single device to connect to this port. What should you do?

answer

For the interface, use the switchport port-security command.

question

Which of the following are true of port security sticky addresses? (Select two.)

answer

They can be learned automatically or manually configured. They are placed in the running-config file, and can be saved to the startup-config file.

question

You have just enabled port security on a switch port. What are the default settings? (Select three.)

answer

Maximum of 1 device Dynamically-learned allowed addresses Shutdown violation mode

question

You have two IP phone daisy chains as shown in the exhibit. Which of the following commands correctly configures port security on both FastEthernet 0/5 and 0/6? (Select two.)

answer

Switch (config-if) #switchport port-security maximum 3 Switch (config-if) #switchport port-security

question

In which of the following situations would you use port security?

answer

You wanted to restrict the devices that could connect through a switch port.

question

You are troubleshooting the connections on a switch. Which would you do to correct the status shown for Fa0/12?

answer

Use the no shutdown command.

question

You are troubleshooting the connections on a switch. The device connected to the switch on fa0/8 is powered on. Which would you do to correct the status of Fa0/8?

answer

Replace the cable.

question

Which of the following measures can you take to increase the security of remote connections to your router?

answer

Configure SSH.

question

You would like to use the crypto key command to generate a key pair for use with SSH. Which parameters must be set prior to running this command? (Select two.)

answer

ip domain-name hostname

question

You are in the process of configuring a new router. You have configured a hostname and ip domain name for the router. You continue with the following commands: enable secret highway username admin password television crypto key generate rsa aaa new-model login line vty 0 4 password garage transport input ssh line con 0 password airplane What would you do to establish a remote console session with the router? (Select two.)

answer

Use admin for a username and television for the password Run SSH

question

To secure remote console sessions, you have just configured your router to require SSH with the following command: input SSH When you go to connect, the system prompts you for a username and a password. You recall that you did not configure this information. Which command(s) would complete the SSH configuration?

answer

RouterA(config)#username admin password canyon

question

You are physically seated at a host connected to the console of the Seattle router as shown in the exhibit. You need to know what IP address has been configured on the E0 interface on the New York router. What are your options? (Select two.)

answer

Telnet to Toronto. From privileged mode type show cdp neighbors detail. Telnet to New York. From privileged mode type show interface E0

question

You are configuring a router that has a previous configuration. You need to turn CDP on for the entire router, but turn it off for the serial 0/0/1 interface. Match the correct command on the left with the configuration task on the right.

answer

Enter global configuration mode: router# config t Turn CDP on for the router: router(config)# cdp run Enter interface configuration mode: router(config)#int s0/0/1 Turn CDP off for the interface: router(config-if)#no cdp enable

question

Which of the following commands would you use to modify the CDP packet exchange interval to send CDP packets every 30 seconds?

answer

cdp timer 30

question

For security reasons, you want to prevent the Toronto router from sharing any information about itself with neighboring devices. What should you do?

answer

From global configuration mode on Toronto, type no cdp run.

question

Given that an IPv4 address is a 32-bit binary number represented in four octets (four 8-bit values), which of the following are valid IP addresses? (Select three.)

answer

224.0.0.1 172.17.1.3 137.65.1.1

question

A workstation has been assigned the following IP addressing information: IP address: 192.168.1.26 Subnet mask: 255.255.255.0 Default gateway: 192.168.1.254 DNS server: 192.168.1.1 Given this information, what is the IP address of the network where this host resides?

answer

192.168.1.0

question

What is the correct decimal form of the following binary IP address? 00001010.00000000.01100100.00011101

answer

10.0.100.29

question

What is the correct binary form of the decimal IP address 192.168.1.1

answer

11000000.10101000.00000001.00000001

question

Which of the following is not one of the ranges of private IP address that are commonly used behind a NAT router?

answer

169.254.0.1 - 169.254.255.254

question

Which of the following IP addresses is a valid IP address for a host on a public network?

answer

142.15.6.1

question

Which of the following are private IP addresses? (Select two.)

answer

10.244.12.16 192.168.250.11

question

Which of the following devices is most likely to be assigned a public IP address?

answer

A router that connects your home network to the Internet.

question

A network host has an IP address of 137.65.1.2 assigned to it. Given that the network uses the default classful subnet mask, what is the default routing prefix for this address?

answer

/16

question

A network host has an IP address of 10.10.0.2 assigned to it. Given that the network uses the default classful subnet mask, what is the default routing prefix for this address?

answer

/8

question

Your network uses a network address of 137.65.0.0 with a subnet mask of 255.255.0.0. How many addresses are available for assignment to network hosts on this network?

answer

65534

question

Drag each binary subnet mask on the left to is appropriate decimal equivalent on the right.

answer

255.0.0.0: 11111111.00000000.00000000.00000000 255.255.255.128: 11111111.11111111.11111111.10000000 255.224.0.0: 11111111.11100000.00000000.00000000 255.255.0.0: 11111111.11111111.00000000.00000000 255.255.255.252: 11111111.11111111.11111111.11111100

question

Drag each binary subnet mask on the left to its appropriate decimal equivalent on the right.

answer

255.254.0.0: 11111111.11111110.00000000.00000000 255.255.255.254: 11111111.11111111.11111111.11100000 255.248.0.0: 11111111.11111000.00000000.00000000 255.255.255.0: 11111111.11111111.11111111.00000000 255.255.255.248: 11111111.11111111.11111111.11111000

question

Your network has a network address of 172.17.0.0 with a subnet mask of 255.255.255.0. Which of the following are true concerning this network? (Select two.)

answer

172.17.2.0 is a valid subnet 254 host addresses are available.

question

Your network has been assigned 200.55.6.0 as the network address. You have determined that you need four subnets. Which subnet mask should you use to provide four subnets?

answer

255.255.255.192

question

You have a small network with three subnets shown in the exhibit. IP addresses for each router interface are also indicated. How many IP addresses on each subnet remain that can be assigned to hosts?

answer

SubnetA = 125, SubnetB = 0, SubnetC = 13

question

You have a network with three subnets. You have selected the following subnet addresses: SubnetA = 172.29.10.32/29 SubnetB = 172.30.10.128/26 SubnetC = 172.31.10.32/30 How many host addresses are available on each subnet?

answer

SubnetA = 6 SubnetB = 62 SubnetC = 2

question

You need to connect a router to a subnet. The subnet uses the 192.168.12.0 subnet address with a 26-bit subnet mask. You are instructed to assign the last IP address on the subnet to the router. Which IP address will you use?

answer

192.168.12.62

question

You have been assigned the IP network address of 135.65.0.0 and have selected 255.255.240.0 as the subnet mask. How many valid subnet addresses are available?

answer

16

question

You have a network address of 132.66.0.0 and a subnet mask of 255.255.224.0. Which four of the following are valid subnet addresses?

answer

132.66.224.0 132.66.192.0 132.66.0.0 132.66.96.0

question

Your network has been assigned 200.55.6.0 as the network address. You have determined that you need six subnets. Which of teh following should you use as your subnet mask to provide six subnets?

answer

255.255.255.224

question

Your network has been assigned 168.11.0.0 as the network address. You have determined that you need 70 subnets. Which subnet mask value should you select to provide 70 subnets?

answer

255.255.254.0

question

You have a network address of 202.200.55.0 with a subnetmask of 255.255.255.224. Which of the following is the broadcast address for subnet 202.200.55.96?

answer

202.200.55.127

question

You are configuring a network and have been assigned the network address of 221.12.12.0. You want to subnet the network to allow for 5 subnets with 20 hosts per subnet. Which subnet mask should you use?

answer

255.255.255.224

question

What is the last host IP address on subnet 202.177.48.64 if the mask value is 255.255.255.240?

answer

202.177.48.78

question

A host on the network has an IP address of 201.79.187.236 with a subnet mask of 255.255.255.192. What is the subnet address of this host?

answer

201.79.187.192

question

You are configurin a network and have been assigned the network address of 211.109.55.0. You want to subnet the network to allow for 10 subnets with 7 hosts per subnet. Which subnet mask should you use?

answer

255.255.255.240

question

You have a network address of 233.233.11.0 and a sbunet mask of 255.255.255.240. Which three of the following are valid host addresses for the subnet 233.233.11.32?

answer

233.233.11.33-46

question

You have a network address of 133.233.11.0 and a subnet mask of 255.255.255.240. How many possible host addresses are on each subnet?

answer

14

question

you are configuring a network and have been assigned the network address of 221.12.12.0. you want to subnet the network to allow for 5 subnets with 20 hosts per subnet. which subnet mask should you use?

answer

255.255.255.224

question

you have a single router with three subnets as shown in the Exhibit. each subnet has the number of hosts specified. you need to select a subnet mask for each subnet that provides sufficient host addresses without wasting addresses. which mask values should you use?

answer

subnetA=255.255.255.192 subnetB=255.255.255.224 subnetC=255.255.255.128

question

you need to design a network that supports 275 hosts. you want to place all hosts in a single broadcast domain, and want to make sure you do not waste IP addresses.

answer

place all hosts on the same subnet. use a mask of 255.255.254.0

question

you have a network with two routers as shown in the exhibit. you need to assign subnet addresses and masks to subnets 1,2 and 3. which subnet values should you use?

answer

subnet 1=172.16.0.16/29 subnet 2=172.16.0.0/28 subnet 3=172.16.0.28/30

question

you have a network with two router as shown in the exhibit. you need to choose subnet addresses for subnet 1 and 2. which of the following subnets would you use?(select two.)

answer

172.30.12.128/26 172.30.12.0/28

question

you have a router with three subnets as shown in the exhibit. you need to choose subnet addresses and masks for each subnet. which values would you use?

answer

A=172.22.19.64/26 B=172.22.19.32/27 C=172.22.19.192/26

question

you have a small network with three subnets as shown in the exhibit. IP addresses for each router interface are also indicated. you need to connect work1_A to subnetA and wrk5_c to subnet C. which IP addresses should you use?(select two.)

answer

wrk1_A=192.168.111.62 WRK5_C=10.155.64.97

question

Your client has a class B network address and needs to support 500 hosts on as many subnets as possible. which subnet mask should you recommend?

answer

255.255.254.0

question

you client has a class B network IP address and needs to support 60 subnets. what subnet mask should you recommend?

answer

255.255.252.0

question

you have a network address of 133.233.11.0 and a subnet mask of 255.255.255.240. how many possible host addresses are on each subnet, excluding subnet address and broadcast address?

answer

14

question

you have a network address of 132.66.0.0 and a subnet mask of 255.255.254.0. how many possible host addresses are on each subnet, excluding addresses of all 1s and all 0s?

answer

510

question

you have been assigned the ip address of 131.66.0.0 for your network. you have determined that you need 16 subnets to allow for growth. what subnet mask value would you use?

answer

255.255.240.0

question

you have been assigned the ip address of 197.177.25.0 for your network. you have determined that you need 5 subnets to allow for growth. what subnet mask value would you use?

answer

255.255.255.224

question

you have been assigned the ip address of 1140.255.0.0 for your network. you have determined that you need 39 subnets to allow for growth. what subnet mask value would you use?

answer

255.255.252.0

question

Which of the following best describes how a router operates to transmit messages to different LAN segments?

answer

The router reads the LAN segment address contained in the message and consults the appropriate routing table for the protocol, then forwards the message to the appropriate LAN segment.

question

Which two of the following statements about routers are true?

answer

They examine the destination device address contained in packets to make routing decisions. They use logical network and device addresses to route data between networks.

question

How does a router use a frame to router data through a network?

answer

The router checks the MAC address in the frame, replaces the MAC address of the source with its own MAC address, and sends it to the proper host.

question

You use the show ip route command on your router and see the information shown below: Gateway of last resort is not set C 192.168.1.0/24 is directly connected, FastEthernet0/0 C 192.168.2.0/24 is directly connected, FastEthernet0/1 172.16.0.0/24 is subnetted, 1 subnets C 172.16.11.0 is directly connected, Serial0/1/0 R 10.0.0.0/8 [120/1] via 172.16.11.12, 00:00:04, Serial0/1/0 The router receives a packet on the FastEthernet0/1 interface addressed to 192.168.3.155. What will the router do with the packet?

answer

Drop the packet

question

You use the show ip route command on your router and see the information shown below: Gateway of last resort is 172.16.11.12 to network 0.0.0.0 C 192.168.1.0/24 is directly connected, FastEthernet0/0 C 192.168.2.0/24 is directly connected, FastEthernet0/1 172.16.0.0/24 is subnetted, 1 subnets C 172.16.11.0 is directly connected, Serial0/1/0 R 10.0.0.0/8 [120/1] via 172.16.11.12, 00:00:04, Serial0/1/0 S* 0.0.0.0/0 [1/0] via 172.16.11.12 The router receives a packet on the FastEthernet0/1 interface addressed to 192.168.3.155. What will the router do with the packet?

answer

Forward the packet out Serial0/1/0

question

You use the show ip route command on your router and see the information shown below: Gateway of last resort is 172.16.11.12 to network 0.0.0.0 C 192.168.1.0/24 is directly connected, FastEthernet0/0 C 192.168.2.0/24 is directly connected, FastEthernet0/1 172.16.0.0/24 is subnetted, 1 subnets C 172.16.11.0 is directly connected, Serial0/1/0 R* 10.0.0.0/8 [120/1] via 172.16.11.12, 00:00:04, Serial0/1/0 The router receives a packet on the FastEthernet0/1 interface addresses to 192.168.3.155. What will the router do with the packet?

answer

Forward the packet out Serial0/1/0

question

Match the router interface on the left with the address used to reach the destination network.

answer

192.168.1.45: FastEthernet0/0 192.168.11.166: FastEthernet1/0 192.168.3.45: FastEthernet0/1 192.168.15.192: FastEthernet0/0 192.168.25.211: FastEthernet1/0 192.168.111.30: FastEthernet0/1

question

Match the router interface on the left with the address used to reach the destination network.

answer

172.16.0.19: Dropped Packet 172.16.0.109: FastEthernet0/0 172.16.0.158: FastEthernet0/1 172.16.0.178: Dropped Packet

question

You use the show ip route command on your router and see the information shown below: Gateway of last resort is not set 172.16.0.0/28 is subnetted, 4 subnets C 172.16.0.0 is directly connected, FastEthernet0/0 C 172.16.0.32 is directly connected, FastEthernet0/1 R 172.16.0.96 [120/1] via 172.16.0.1, 00:00:25, FastEthernet0/0 R 172.16.0.128 [120/1] via 172.16.0.33, 00:00:25, FastEthernet0/1 The router receives a packet addressed to 172.16.0.19 and one addressed to 172.16.0.109. What will the router do with each packet? (Select two.)

answer

Forward the packet addressed to 172.16.0.109 to the router 172.16.0.1 Drop the packet addressed to 172.16.0.19

question

Which routing logic organizes routing data in the Forwarding Information Base (FIB)?

answer

Cisco Express Forwarding

question

Which processes are used by Cisco Express Forwarding (CEF) to optimize packet processing through a router? (Select two.)

answer

It maintains adjacency tables. It organizes routing data in the Forwarding Information Base (FIB).

question

Which internal routing logic organizes routing data using a tree structure for very fast searches, requiring less time to route packets?

answer

Cisco Express Forwarding

question

You are designing a routing solution for your organizations. You want to improve routing efficiency by ensuring that routers save frequently used data link headers used to encapsulate packets. Which types of routing logic could you implement? (Choose two. Each response is a separate solution.)

answer

Fast Switching Cisco Express Forwarding

question

Which Cisco Express Forwarding mechanism maintains Layer 2 information linked to a particular entry in the routing table, reducing the need to send ARP requests before forwarding packets?

answer

Adjacency tables

question

You use the show ip route command on a Cisco router and see the following information. Which of the following are true? (Select two.)

answer

For the route to 172.17.0.0, the number 68 indicates the route cost. The router has learned about routes through three routing protocols.

question

Match the default administrative distance with the route type.

answer

EIGRP internal routes: 90 EIGRP external routes: 170 OSPF: 110 RIP: 120 Static routes: 1

question

Match each routing method on the left with its associated characteristics on the right. Each routing method may be used once, more than once, or not at all.

answer

Most appropriate on small networks: Static routing Propagates changes in the network topology: Dynamic routing Provides complete control over routes: Static routing Most appropriate on networks that don't change frequently: Static routing Keeps routing tables on each router up to date: Dynamic routing

question

What is the default administrative distances for OSPF?

answer

110

question

You have issued the following command on your router. Router(config)#ip route 202.22.12.0 255.255.255.0 192.168.1.1 What items are indicated by the parameters in this command? (Select two.)

answer

The next hop router address is 192.168.1.1. A route to network 202.22.12.0 is added.

question

You are the administrator of the network shown in the exhibit. You want to configure the stub network located in Tampa to forward packets to Chicago, but you do not want the overhead associated with a routing protocol. Which of the following will accomplish your goal?

answer

Tamp(config)#ip route 0.0.0.0 0.0.0.0 182.1.48.3 Chicago(config)#ip route 182.1.48.0 255.255.240.0 182.1.48.4 Chicago(config)#ip route 192.168.112.128 255.255.255.248 182.1.48.4

question

You need to configure a static route on your Cisco router. The destination network is 192.65.178.0 with a subnet mask of 255.255.255.0. The default gateway is 192.65.179.1, and the IP address of the destination host for the message is 192.65.178.15. Which of the following commands configures this route?

answer

ip route 192.65.178.0 255.255.255.0 192.65.179.1

question

You have a small network with IP addresses assigned to router interfaces as shown in the exhibit. You need to configure a static route on RouterA for SubnetC. Which command would you use?

answer

RouterA(config)#ip route 10.155.64.96 255.255.255.240 fa 0/1

question

You have a small network with IP addresses assigned to router interfaces as shown in the exhibit. You need to configure a static route on RouterB for SubnetA. Which command would you use? (Select two.)

answer

RouterB(config)#ip route 192.168.111.128 255.255.255.128 172.18.12.197 RouterB(config)#ip route 192.168.111.128 255.255.255.128 fa 0/0

question

You have a small network as shown in the exhibit. You want to configure a route so that packets sent to any non-directly connected network get sent to RouterB. Which command would you use?

answer

ip route 0.0.0.0 0.0.0.0 192.168.4.14

question

You have a small network as shown in the Exhibit. You have configured RIP on both RouterA and RouterB. The show ip route command on RouterA shows the following information: You want to configure a default route so that all packets for unknown networks are sent to RouterB. Which command should you use?

answer

ip default-network 10.0.0.0

question

You have a small network as shown in the Exhibit. You have configured RIP on both RouterA and RouterB. The show ip route command on RouterA shows the following information: RouterA recieves a packet addressed to 172.16.0.1. What will RouterA do with the packet?

answer

Drop the packet.

question

Which of the following best describes OSPF?

answer

OSPF is a classless link-state routing protocol.

question

How are routing tables created by link-state routing protocols?

answer

The SPF algorithm is applied to the topological database to create a routing table.

question

How do link-state routing protocols determine the topology of the network?

answer

Each router initially exchanges LSP messages which are used to build a topological database.

question

Which of the following are components of a link-state routing protocol? (Select three.)

answer

LSA packets Topological database SPF algorithm

question

What are the common elements of a network hierarchy used by link-state routing protocols? (Select two.)

answer

Autonomous System Area

question

Which of the following are true about the link-state routing method? (Select three.)

answer

Network traffic due to sharing routing information is less than with the distance vector method. Convergence is faster than with the distance vector method. Link state routers send updates immediately

question

Which of the following are problems typically associated with the link-state routing method? (Select two.)

answer

Increased use of router hardware resources High traffic to build routing tables

question

How are distance vector routing protocols different from link-state routing protocols? (Select three.)

answer

Link-state routing protocols are faster to converge than distance vector routing protocols. Distance vector routing protocols are easier to implement than link-state routing protocols. Distance vector routing algorithms do not calculate the exact topology of a network.

question

How are distance vector routing protocols similar to link-state routing protocols? (Select two.)

answer

The distance vector routing protocol RIP and the link-state routing protocol OSPF and both are interior gateway protocols. The trustworthiness of both types of routing protocols is rated by an administrative distance.

question

Which of the following are true about the distance vector method of sharing routing table information? (Select two.)

answer

The entire routing table is sent to other routers. Routers send routing information only to their neighbor routers.

question

Which of the following methods of preventing the count-to-infinity problem with distance vector routers will send a hop count of 16 back up the path from which the information was obtained?

answer

Split horizon with poison reverse

question

One method of preventing routing loops is to not send information about a route back to the router from which the information came. What is this technique called?

answer

Split horizon

question

Hold downs use triggered updates to help prevent routing loops by letting routers know of changes in the network. Which of the following events can reset the hold-down timer? (Select two.)

answer

The hold-down timer runs out. The hold-down timer recieves notification of a change in network status.

question

Which of the following are ways you can prevent routing loops with a distance vector routing protocol? (Select four.)

answer

Static routes Split horizon Hold-downs Route poisoning

question

Which of the following methods of preventing routing loops prevents routing table changes from taking place too quickly and prevents downed links from being added back into the routing table?

answer

Hold-downs

question

you have a network with two routers as shown in the exhibit. routerA and routerb are configured to use RIP version 2 with auto-summarization enable. which summarized network entry will router A have in its routing table for the subnets connected to routerb?

answer

192.168.12.0/24

question

you have a network with two routers as shown in the exhibit. you would like to configure a single static route on routera that summarizes the routes accessible through routerb. which static route would you configure?

answer

ip route 172.12.1.64 255.255.255.192 serial 0/1/0

question

you have a network with two routers as shown in the exhibit. you would like to configure a single static route on routera that summarizes the routes accessible through routerb. which static route would you configure?

answer

ip route 192.168.100.64 255.255.255.192 192.168.100.34

question

you have a network with two routers as shown in the exhibit. routera currently has a single static route to network 10.0.155.80/28. you need to add another subnet to routerb. this subnet should also use a 20-bit mask. you would like to replace the existing static route to network 10.0.155.80/28 with a single summarized static toute that includes the old network and the network. you want to minimize wasted addresses.

answer

configure the static route to use a network of 10.0.155.64 and a mask of 255.255.255.224 use 10.0.155.64/28 for the new subnet

question

you have a network with three routers as shown in the exhibit. all routers are configured to share information for all known routes using the same routing protocol. automatic summarization is enabled. router b shares its known networks with router a. which of the following routes will be router a's routing table?

answer

172.16.2.0/27, 172.16.2.32/28, and 172.16.2.48/28

question

you have a network with three routers as shown in the exhibit. all routers are configured to share information for all known routes using the same routing protocol. automatic summarization is enabled. router b share its known networks with router c which of the following routes will be in router C's routing table?

answer

172.16.0.0/16

question

to properly configure link-state routing, which one of the following areas is mandatory within an AS

answer

Backbone

question

you are currently suing EIGRP on your network. which of the following would you gain by switching to OSPF?(Select two.)

answer

Open standard Hierarchical network design

question

you have configured router A, router B and router C as shown in the exhibit. no loopback interfaces have been configured. hostname C ... router ospf 600 network 172,16,32.1 0.0.0.0 area 100 network 192.168.2.1 0.0.0.0 area 100 ... what is the default router ID of router C?

answer

192.168.2.1

question

what are DRs and BDRs used for when using the OSPF routing protocol?

answer

reduce routing table updates in a broadcast type network.

question

you have a medium-sized business network with twelve subnets (192.168.1.0/24 through 192.168.12.0/24). you use OSPF for your routing protocol. one Ethernet subnet has five routers, all in the same OSPF AREA AS SHOWN IN THE EXHIBIT. you want to ensure......

answer

for the ospf process, set the router-id to 200.1.1.1 for fa 0/1, set the ospf priority to 2. change the IP address assigned to Fa 0/1 to 192.168.12.254.

question

you are running ospf as your routing protocol. one Ethernet subnet has five ospf routers on the subnet A partial configuration for two of the routers is shown below. Both routers are connected to the subnet through the fa 0/1 interface. all interfaces are up. ..... assuming that either router A or router b will become the DR, which one will be elected the DR for the subnet?

answer

router A will be the DR because of the loopback interface IP address.

question

you are running ospf as your routing protocol. one Ethernet subnet has five ospf routers on the subnet A partial configuration for two of the routers is shown below. Both routers are connected to the subnet through the fa 0/1 interface. all interfaces are up. ..... given this configuration. which of the following statements are true for both routers on subnet A? ( Select three.)

answer

router A will never become the DR or the BDR the router ID for routerB is 12.0.0.1 the router ID for router A is 15.1.1.1

question

you have five router running ospf on a single subnet. routerB has been elected as the DR. you remove router B from the network for a hardware upgrade. the next day, you add the router back onto the network. what will happen when you add routerB back onto the network?

answer

router B will become the DR only if a new election occurs

question

which of the following are true of ospf configuration to enable two routers to become adjacent?

answer

the area assigned to each network must match. hello and dead timer intervals must match on all routers

question

you want to configure a single area ospf network for area 0. what are the minimum commands you must use?(select two.)

answer

router ospf 12 network 1.1.1.0 0.0.0.225 area 0

question

you want to configure router B to run ospf with a local process ID of 100. Both interfaces S0 and S1 on router B belong to area 300. which set of commands should you enter

answer

router ospf 100 network 172.16.16.1 0.0.0.0 area 300 network 172.16.32.2 0.0.0.0 area 300

question

you are configuring ospf for area 0. subnetA uses an address of 172.16.20.48/28. which wild card mask value would you use for the network statement?

answer

0.0.0.15

question

you are configuring ospf for a single router with two interfaces as shown in the exhibit. what network statement(s) would you use to configure both interfaces for ospf for area 0?

answer

network 192.168.1.64 0.0.0.31 area 0 network 192.168.1.128 0.0.0.15 area 0

question

you want to configure ospf to run only on the interface with an IP address of 10.1.1.112/26 and you want to associate the interface with Area 3. which of the following commands will accomplish your goal?

answer

network 10.1.1.64 0.0.0.63 area 3

question

you have configured two routers, LondonA and LondonB for ospf routing. Serial0/0 on London A is connected to Serial 0/1 on LondonB. the partial configuration of each router is shown below: ...... area 10 when you check the routing table on LondonA, you find that it has not learned about network 172.17.1.16 from LondonB. What is the problem?

answer

the areas defined in the network statements do not match

question

you have configured two routers, LondonA and LondonB for ospf routing. Serial0/0 on London A is connected to Serial 0/1 on LondonB. the partial configuration of each router is shown below: ...... 172.17.1.16 0.0.0.7 172.17.1.76 0.0.0.3 when you check the routing table on LondonA, you find that it has not learned about network 172.17.1.16 from LondonB. what is the problem?

answer

the IP address assigned to Serial0/0 on LondonA is not the same subnet as the IP address assigned to serial0/1 on LondonB.

question

you have configured two routers, LondonA and LondonB for ospf routing. Serial0/0 on London A is connected to Serial 0/1 on LondonB. the partial configuration of each router is shown below: ...... 172.17.1.16 0.0.0.3 172.17.1.76 0.0.0.7 when you check the routing table on LondonA, you find that it has not learned about network 172.17.1.16 from LondonB. what is the problem?

answer

wildcard mask values for the network statements are incorrect.

question

you have configured ospf routing on routerA. A partial configuration is shown below: hostname RouterA ! ....... router A is connected to router B through the serial link. what routes will routerB have in its routing table that it has learned from RouterA?

answer

172.16.1.64/27 and 172.16.1.96/28

question

one of the interfaces in a router with ospf enabled is connected to a network link where no other routers reside. you want to prevent this interface from sending OSPF hello massages as there are no other routers on that network to respond. which command should you use?

answer

passive-interface

question

you want to prevent all interfaces on a router from sending or responding to ospf hello massafes

answer

passive inter-face default

question

use the exhibit to answer this question. to create separate broadcast domains, you enabled four VLANs on your Catalyst 2950 swith. you then placed a single host computer in each Vlan. Now, the computer in VLAN1 can no longer communicate with the computers in the other VLANS. What must you do to enable communication between VLANs?

answer

Add a router on a stick

question

use the exhibit to answer this question. A catalyst 1900 switch multiple VLANs is connected to a single physical interface on a Cisco 2600 router. the switch is using ISL trunking. you want to permit interVLAN routing between each of the VLANs. what should you do?(Choose two.)

answer

encapsulate ISL on each router subinterface for the VLAN it supports. Configure a subinterface for each VLAN and assign a unique IP network address for each VLAN.

question

Which of the following best describes a Switch Virtual Interface (SVI) on a multi-layer switch?(select two)

answer

A multi-layer switch treats a SVI as a physical link through which it can route traffic. A SVI is mostly implemented to interconnect the VLANs between distribution and access switch in a multi-switched network.

question

you have two switches as shown in the following diagram. each switch has hosts from two separate VLANs. how would you connect the switches so that hosts in VLAN1 on one switch can communicate with hosts in the same VALN on the other switch

answer

connect both switches with a crossover cable.

question

you have two switches as shown in the following diagram. each switch has hosts from two separate VLANs. how would you connect the switches so that hosts in VLAN1 can communicate with hosts on VLAN2?

answer

connect both switches with a router using straight-through cable

question

use the exhibit to answer this question. A catalyst 2950 switch supporting a single vlan, vlan2, is connected to a router interface, fa0/1.a second catalyst 2950 switch supporting another vlan, vlan3, is connected to the same router on fa0/2. each switch is using 802.1Q trunking. you want to permit interVLAN routing between VLAN2 and VLAN3. what should you do?(choose two.)

answer

on the router, encapsulate 802.1Q for VLAN2 on fa0/1 and VLAN3 on fa0/2 configure a unique IP network address for each VLAN on each router interface

question

use the exhibit to answer this question. you network has four VLANs with multiple computers in each VLAN. you want to enable interVLAN routing. how must you assign the IP addresses for each VLAN?

answer

all the computers within the same VLAN must belong to the same IP subnet.

question

you are configuring an 1841 Cisco router for inter-VLAN communication. you would like to use one physical interface to handle the incoming VLANs 2 and 10. the VLANs are encapsulated with 802.1Q tags. which commands would you use to configure the physical interface for VLAN 2(select three)?

answer

router(config-if)#int fa 0/1.2 router(config-subif)#ip address 172.16.2.1 255.255.255.0 router(config-subif)#encapsulation dot1q 2

question

you are configuring an 1841 Cisco router for inter-VLAN communication. you would like to use one physical interface to handle the incoming traffic from VLANs 2 and 10. the switch connected to the router is sending 802.Q encapsulated traffic for VLAN 2 but is not encapsulating VLAN 10. which command would you use to ensure that the router correctly handles traffic coming from the switch?

answer

router(config-subif)#encapsulation dot1q 10 native

question

you are implementing inter-VLAN routing using a router-on-a-stick configuration as shown in the exhibit. you configure the router as follows: ...... code which of the following is true?(select two)

answer

the hosts in VLAN 2 will have 192.168.2.1 as the default gateway IP address. the router will not use 802.1Q to encapsulate VLAN 1 traffic

question

you are implementing inter-VLAN routing using a multi-layer switch as shown in the exhibit. you configure the switch as follows: ......code which of the following is true?(select two)

answer

the hosts in Vlan 1 will use 192.168.1.1 as the default gateway IP address. the switch can route between VLAN interfaces 1 and 2 as if the interfaces were physical links.

question

you are configuring a catalyst 3550 switch for inter-VLAN routing. you are adding VLAN 11 to the switch. the VLAN 1 and 2 interfaces already have a configuration on the switch, and now you need to configure the VLAN 11 interface. which command(s) would you use?

answer

switch(config)#int vlan 11 switch(config-if)#ip address 172.16.11.1 255.255.255.0 switch(config-if)#no shut

question

you are in the process of configuring the switch so it can be managed from a Telnet or Web session. the switch is currently connected to the router as shown in the diagram. in this lab, you will only be able to work with the switch console. complete the following configuration tasks: configure the switch with the third IP address on the subnet configure the switch to use the router as the default gateway save your changes to the startup-config file.

answer

switch>en switch#conf t interface Vlan1 ip address 192.168.20.3 255.255.255.0 exit ip default-gateway 192.168.20.1 exit copy run start

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