Cisco Routing and Switching Pro chapter 6 – Flashcards
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Which of the flowing statement describe how VLANs affect broadcast traffic within an internetwork? select two
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Broadcast traffic is transmitted only within a VLAN Devices on the same VLAN have the same subnet address
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You have used a set of bridges and routers to segment your LAN into smaller networks. What result will you get? select two
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Increased number of collision domains Decreased congestion on each segment
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Which of the following are results of using a router to segment a network? select two
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Increased number of collision domains Fewer devices per broadcast domain
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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?
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The broadcast domain is reduced to only one device
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Which of the following accurately describe cut-through switching?
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The switch copies only the destination address of the frame into its buffer. The switch reduces latency by forwarding the frame almost immediately.
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Which statement best describes the fragment-free switching method?
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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.
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Which of the following are true of store-and-forward switches? select three
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Frames are checked for errors before being forwarded Frames with errors are dropped Latency is greater than with cut-through switches
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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?
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4
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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?
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The switch records the address and port from Device B in its database. It sends the frame out port Fa0/1.
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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 A sends a frame addressed to Host A. Host B sends a frame addressed to Host C. The switch receives a frame on Fa0/3 addressed to the MAC address of Host D. What will the switch do?
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Record the MAC address of Host C, then forward the frame out all ports except Fa0/3
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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: Wrk 1 sends a frame addressed to Wrk5. What will the switch do with the frame? select two
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Forward the frame out all ports except Fa0/1. It will not record the location of any device.
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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: Wrk 1 sends a frame addressed to Wrk5. What will the switch do with the frame? select two
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It will not record the location of any device. Drop the frame
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Which of the following describes the role of Distribution switches and how they are implemented in the design of a local area network on a university or corporate campus? select three
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Linked to each other via high-speed connections Constitute the second tier in a two-tier network design Connected to high-speed core switches
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Which of the following describes the role of Core switches and how they are implemented in the design of a local area network on a university or corporate campus? select three
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Provide high speed connections between distribution switches Not used in two-tier (collapsed core) network design Reduce the number of uplinks required to connect each building to the campus network.
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Consider the network shown in the exhibit. You have been experiencing intermittent connectivity issues with swtch2. To check the status of the interface, you run the following commands What is the issue with this network?
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The device connected to the Fa0/1 interface has auto negotiation disabled
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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 100Mbps link speed and full duplexing. Which of the following are true in this scenario? select three
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If the link speed is 1000 Mbps or faster, full-duplex is used If the link speed is 10 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.
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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.
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Enter global configuration mode= conf t Enter interface configuration= ing fa0/1 Set speed of the interface= speed auto Set duplex setting for the interface= duplex auto
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You need to disable the fastehternet 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.
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Enter global configuration mode= conf t Enter interface configuration= ing fa0/0 Disable the interface= shutdown Verify the interface is disabled= show ip interface brief
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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.
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Enter global configuration mode= conf t Enter interface configuration= ing fa0/0 Enable the interface= no shutdown Verify the interface is disabled= show interface status
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You have a small network connected to the Internet as shown in the exhibit. You need to configure the default gateway address on Wr1 so that it can communicate with hosts on the internet. Which address would you use for the default gateway address?
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The IP address assigned to FA0/0 on Router 1.
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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
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Default gateway DNS server address
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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 workstations should use RouterA as the default gateway, and DNS1 as the DNS server address. From the down-down list, select the appropriate parameters to configure the workstations TCP/IP settings.
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IP Address 192.168.12.46 Subnet Mask 255.255.255.240 Default Gateway 192.168.12.34 DNS Server 198.162.1.22
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Which command(s) would you use to configure a default-gateway on a Catalyst 2950XL switch?
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Switch(config)#ip default-gateway 192.168.10.1
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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?
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int vlan 1 ip address 192.168.10.2 255.255.255.0
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You are the only 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? select two
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The switch must be configured with a valid IP address and default gateway The remote workstation must have access to the management VLAN of the switch
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You have a workstation configured with DNS server addresses as follows. Primary-192.168.1.1 Alt- 192.168.1.115 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 ipad dress for www.cisco.com?
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out of its local DNS cache
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Listed below are several places that a workstation checks to resolve DNS host names. A-Primary DNS server B-Secondary DNS servers C-Host files D-Local DNS cache
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D,C,A,B
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You would like to see what host names have been cached on your router. Which command displays the cashed list of host names?
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show host
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For each operation on the right match the appropriate command from the list on the left.
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Configure DNS server addresses for the router to use for resolving 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
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You have just started a Cisco 2960 switch. You notice that the system light is a solid amber color. What does this indicate?
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The system has power but is not functioning properly
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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?
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The port is shut down or the cable is bad.
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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 Speed= Flashing green Which of the following are true. select two
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The port is operating in full duplex mode The port speed is 1000 Mbps
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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?
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no shutdown
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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 and green. What should you do to correct the problem?
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Check the NIC in Wrk1 for frame errors or excessive collisions
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Which of the following are reasons to configure VLANs on a switch as opposed to using switches without VLANs?
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Increased security Increased number of broadcast domains
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You have two switches connected together as shown in the following diagram. How many broadcast domains are there in the network shown?
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2
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Which of the following benefits apply only to creating VLANs with switches and not to segmenting the network with regular switches?
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You can create multiple broadcast domains
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Which of the following statements describe how VLANs affect broadcast traffic within and internetwork? select two
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Devices on the same VLAN have the same subnet address Broadcast traffic is transmitted only within a VLAN
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Which of the following are true regarding using multiple VLANs on a single switch? select two
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The number of broadcast domains increases The number of collisions domains remains that same
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Which interface is the member of VLAN 65?
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fa0/22
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Computer A and B are on the same VLAN and are separated by two switches, as show in the exhibit. Computer A sends a frame to Computer B. Which of the following best describes the composition of the frame as it travels from A to B?
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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.
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Which of the following statements accurately describes a VLAN ID?
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Switches append a VLAN ID to the header of each frame to identify the virtual network to witch it belongs
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What primary advantages does the 802.1Q Trunking Protocol offer compared to ISL. choose two
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Can be used with a mix of Cisco and non-disco devices IEEE standard
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You've just enabled trunking on the fa0/1 port of Catalyst 2960 switch. By default, what traffic can now be sent across this interface?
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only 802.1Q traffic
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Switch B is a Catalyst 2924 switch you're configuring to support VLAN trunking. Switch B is both ISL and 802.1Q callable. With 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
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switchport trunk encapsulation dot1q switch port mode trunk
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You want to make interface fa0/2 a member of VLAN2 on a Catalyst 2950XL switch. Which commands must you enter? select two
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switch port access vlan2 int fastethernet 0/2
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you have a small network with four switches as shown in the diagram. which of the following are true. select two
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Fa0/3 on switch B is an access port Fa0/2 on switch B is a trunk port
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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 commands would you use?
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Switch(config)#int fa 0/1 Switch(config-if)#switchport mode trunk Switch(config-if)#swtichport trunk native vlan3
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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 commands would you use?
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Switch(config)#int fa 0/1 Switch(config-if)#switchport mode trunk Switch(config-if)#swtichport trunk allowed vlan remove 3
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Which of the following is true concerning the native VLAN and VLAN trunking? select three
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If the native VLAN on one end of the trunk is different that 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 on the native VLAN when they enter an 802.1Q trunking interface but do not have an 802.1Q header With 802.1Q trunking, frames from the native VLAN are not tagged
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After using the show run command on a 2960 Cisco switch, you receive the following output. Which of the following is true?
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Both fastethernet 0/9 and 0/10 are configured as unconditional access ports.
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You want to get a list of all ports on your switch that are currently trunking. Which command should you use?
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show interface trunk
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YOu want to verify that trunking is enable between the Catalyst 2950XL switch and the Cisco 2600 router. Which command must you enter?
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Show interface fa0/1 trunk
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Using the exhibit to answer the following questions. 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?
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Configure port security on the switch.
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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?
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restrict
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What are the default swtichport configurations parameters on a 2960 switch? select two
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Violation actions is set to shutdown A maximum of 1 MAC per port is allowed
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You are configuring a new 2960 switch. You issue the following commands. Switch(config)#interface fast 0/15 switch(config-if)#swtichport modes access switch(config-if)#switchport port-security switch(config-if)#switchport port-security maximum 1 switch(config-if)#switchport port-securitymac-address sticky switch(config-if)#switchport port-security violation protect you connect a hub with two workstation to port fa0/15. You power on first device1 and then device2. what will be the result?
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Frames from device1 will be allowed; frats from device2 will be dropped
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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 have to make sure that only this server can connect to port fa0/17, but that it an send and receive frames from the five workstations on the network. What should you do?
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Configure swtichport security on fa0/17 to allow only the MAC address of SrvFS
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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 have 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 swtichport port-security mac-address command to identify the MAC address on the server. What else should you include in your commands? select two.
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swithcport port-security maximum 1 switch port port-security violation shutdown
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You have a switch that has port security enable on the fa0/3 interface. The output of the show port-security interface fa0/3 command is shown below. Port security: enable Port status; secure-up violation mode; protect What is true of this configuration? select two
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The port has learned one MAC address and saved that address in the running config file The port allows up to two connected devices
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You have a switch that has port security enable on the fa0/3 interface. The output of the show port-security interface fa0/3 command is shown below. Port security: enable Port status; secure-shutdown violation mode; shutdown What is true of this configuration?
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The port has been disabled because too many MAC address have been detected
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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 fine the fowling for the interface. interface fastethernet0/3 swithport mode access swithport port-security mac-address sticky
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for the interface, use the swithport port-security command
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Which of the follwing are true of port security sticky addresses? select two
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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
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You have just enabled port security on a switch port. What are the default settings? select three
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Dynamically-learned allows addresses Maximum of 1 device Shutdown violation mode
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You have tow IP phone daisy chains as shown in the exhibit. Which of the following commands correctly configures port security on both fastethernet 0/5-6? select two
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Switch(config-if)#swithport port-security Switch(config-if)#swithport port-security maximum 3
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In which of the following situations would you use port security?
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You wanted to restrict the devices that could connect through a switch port
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You are troubleshooting the connection on a switch. Which would you do to correct the status shown for fa0/12? Note: you will not be able to use the show run or show start commands in this lab.
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use the no shutdown command
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You are troubleshooting the connection on a switch. The device connected to the switch on fa0/8 is powered on. Which would you do to coeected the status of fa0/8. Note: you will not be able to use the show run or show start commands in this lab.
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Replace the cable
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Which of the following measures can you take to increase the security of remote connections to your router?
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Configure SSH
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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
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hostname ip domain-name
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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. RouterA(config)#enable secret highway RouterA(config)#username admin password television RouterA(config)#crypto key generate rsa RouterA(config)#aaa new-model RouterA(config-line)#login RouterA(config-line)#line vty 0 4 RouterA(config-line)#password garage RouterA(config-line)#transport input ssh RouterA(config)# line con 0 RouterA(config-line)#passwork airplane What owl you do to establish a remote console session with the router? select two
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Run SSH Use admin for a username and television for the password
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To secure remote console sessions, you have just configured your router to require SSH with the following command: Routera(config-line)#transport input ssh When you go to connect, the system prompts you for a username and password. You recall that you did not configure this information. Which command(s) would complete the SSH configuration?
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RouterA(config)#username admin password canyon
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You are physically seated at a host connected to the console on 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
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Telnet to New York. From privileged mode type show interface E0 Telnet to Toronto. From privileged mode top show cdp neighbors detail
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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 commands on the left with the configuration task on the right.
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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
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Which of the follwong commands would you use to modify the CDP packet enhance interval to send CDP packets every 30 seconds?
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cdp timer 30
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For security reasons, you want to prevent the Toronto router from sharing any information about itself with neighboring devices. What should you do?
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From global configuration mode on Toronto, type no cdp run
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Which of the following protocols enables Cisco devices to discover non-Cisco devices?
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LLDP
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LLDP is disabled on Cisco devices by default. Which of the following commands enables LLDP on a Cisco device?
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switch(config)# Feature lldp
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A 5-port hub is attached to interface fa0/1 on your switch. Users of the workstation attached to the hub are complaining that their pings are erratic. When you run the show interface fa0/1 command you receive the following output. fastethernet0/1 is up, line protocol is up (connected) hardware is fast ethernet, address is 0019.e744.7401 (bia 0019.e774.7401) what is the problem?
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Duplex mismatch
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Wrk1 is connected to port fa0/16 on your Cisco 2960 switch. A cable has been plugged into the port and is conencted to a device. The port should be using full-duplex communications at 100 Mbps. You press the MODE button to select Stat, Duplex, and Speed. the results are shown below. -Stat= Solid Green -Duplex=off -SPeed= Solid green Which command(s) should you use for the interface to configure the appropriate settings?
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Duplex full
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You have two Cisco 2960switches with 12 fastethernet ports and 2 gigabitehternet prots on each switch. You connect fa0/1 on switchA to fa0/1 on switchB with a crossover cable. A partial configuration for both switches is shown below. You notice that VLAN traffic for VLAN 2 is not being carried from switchA to switchB. what should you do?
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For fa0/1 on switchA, set swithport mode to dynamic desirable
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You want to verify that interface fastethernet 0/2 is a member of VLAN0002. Which command displays the output shown here?
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show vlan brief
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You have two Cisco 2960switches with 12 fastethernet ports and 2 gigabitehternet prots on each switch. You connect fa0/1 on switchA to fa0/1 on switchB with a crossover cable. A partial configuration for both switches is shown below. You notice that VLAN traffic for VLAN 2 is not being carried from switchA to switchB. what should you do?
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For fa0/1 on switchA, set swithport mode to dynamic desirable
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You are troubleshooting physical layer issues with the gi0/1 interface in a router. You suspect a duplex mismatch error has occurred and need to determine the duplex settings configured on the interface. Which commands could you use; choose two
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show interfaces gi0/1 status show interfaces gi0/1
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Revue te iytoyr fri tge sgiw ubterfaces fa0/1 command on the switch2 with in the exhibit. What is wrong with the fat/1 interface in this example?
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A duplex mismatch exist with the device on teh oterh end of the connection
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Consider the network shown in the exhibit. When you run the show interfaces command on switch1, you observe a significant number of runts on the gi0/1 interface. what does the statistic indicate?
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Collisions are occurring
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You are reviewing the output of the show interfaces command for gi0/1 interface on a switch. Which interface statistic displays the number of collisions that occurred after the 6th byte of the frame was transmitted?
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late collisions
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You are reviewing the output of the show interfaces command for the gi0/1 interface on a switch. You notice a significant number of CRC error displayed. What are the most likely causes? Select two
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EMI, or cross-talk, on the UT cabling is damaging frames in transit to this interface Collisions are causing frame contents to arrive at this interface in a corrupted state
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You are troubleshooting Physical Layer issues with the gi0/1 interface in a router. You need to view and analyze the number of collisions detected on the interface. Which command should you use?
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show interface gi0/1
