CIS115 Chapter 6

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question
You have implemented an ad-hoc wireless network that doesn't employ a wireless access point. Every wireless network card can communicate directly with any other wireless network card on the network. what type of physical network topology has been implemented in this type of network?
answer
MESH
question
Which of the following is the best definition for a LAN?
answer
a network in a small geographic area, like in an office
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You have a network that uses a logical ring topology. How do messages travel through the network?
answer
messages travel from one device to the next until they reached the destination device
question
What type of network describes a workgroup?
answer
peer-to-peer network
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Which of the following terms refers to a network resource sharing model that uses access control list saved on each computer? select two
answer
workgroup peer-to-peer
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In which of the following topologies does each device on the network act as a repeater, sending the signal to the next device?
answer
Ring
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Which of the following topologies connects all devices to a trunk cable?
answer
BUS
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You have been asked to implement a network infrastructure that will accommodate failed connections. Which of the following network topologies provides redundancy for a failed link?
answer
Mesh
question
Which of the following is a weird networking method most commonly used today by desktop PCs and other network devices to connect to a local area network?
answer
Ethernet
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Which of the following are advantages of using a domain to manage a network? select tow
answer
centralized administration and scalability
question
Which of the following topologies connects each network device to a central hub?
answer
star
question
You have a small network that uses a hub to connect multiple devices. What physical topology is used?
answer
star
question
Which of the following is a rating of the amount of data that can be sent over a network in a period of time?
answer
bandwidth
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Which of the following terms describes a group of computers and users that utilize centrallized resources, administration, and security settings? select two
answer
domain and directory
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What device is used to create a physical star topology?
answer
Switch
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You have a network that uses a logical bus topology. How do messages travel through the network?
answer
Messages are broadcast to all devices connected to the network
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Which of the following topologies connects each device to a neighboring device?
answer
Ring
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You want to implement a fault tolerant topology as you interconnect routers on your wide area network. Which of the following would meet your needs?
answer
Mesh
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Which of the following is a valid MAC address?
answer
C0-34-15-01-8E
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Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet contents?
answer
hub
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A host wants to send a message to another host with the IP address ip address 115.99.80.157. IP does not know the hardware address of the destination device. Which protocol can be used to discover the MAC address?
answer
ARP
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Which of the following LAN devices receives a signal on one port, and forwards that signal only to the port where the destination device is connected?
answer
switch
question
an 8-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do?
answer
send the frame out ports 2-8
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How do switches and bridges learn where devices are located on a network?
answer
When a frame enters a port, the source MAC address is copied from the frame header
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Which of the following best describes how a switch functions?
answer
it connects multiple cable segments (or devices), and forwards frames to the appropriate segment.
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Which of the following statements accurately describes how a modem works? select two
answer
- it modulates digital data from the pc into analog data and transmits it on a telephone network - it demodulates analog data from a telephone network into digital PC data
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Which network component connects a device to the transmission media and allows it to send and receive messages?
answer
network interface card
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Which of the following are advantages of using fiber optic cabling for a network, as opposed to other types of cabling? select two
answer
greater cable distance without a repeater and immunity to electromagnetic interference
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What is a major benefit of STP over UTP?
answer
greater resistance to interference
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Which of the following applications is more likely to justify the investment in Category 6 cable?
answer
Streaming Video
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You have recently been called to troubleshoot network connectivity problems at a users workstation. Yo have found that the network cable runs across high traffic areas on the floor, causing the cable to wear through and break. You have replaced the cable with a plenum rated, shield, twisted pair cable. You would like to minimize the problem and prevent it from happening again. What should you do?
answer
Run the cable through the ceiling are instead of across the floor
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Which kind of connector do you use to connect a modem to a standard telephone line?
answer
RJ11
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What type of cabling could be used for an Ethernet 100baseT (100Mbps) network? select two
answer
category 6 UTP Category 5 UTP
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You have just signed up for a broadband home internet service that uses coaxial cable. Which connector type will you most likely use?
answer
F-type
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You need to attach an RJ45 connector to the end of a CAT6 UTP cable. Which tool should you use?
answer
Crimper
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Which type uses light pulses to transmit data?
answer
fiber optic
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You need to connect the end of a Cat 6 UTP cable to a 110 punch down block. Which tool should you use?
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Punchdown tool
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Which of the following are characteristics of coaxial network cable? choose two
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- it has a conductor made from copper in the center of the cable - it uses two concentric metallic conductors
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Which connector is used with unshieled twisted Pair (UTP) cable?
answer
RJ45
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You are using a crimper to attach an rj45 connecter to a CAT UTP cable. You need to use the T568A standard to connect the individual wries to the connector. Which wire should be connected to pin1?
answer
green with white
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You are installing networking cable in the air space between the ceiling and the roof of a building. Which type of cabling should you use?
answer
Plenum
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You have an ethernet network using the 10Based-T standard. Network devices are connected together using hubs. Which of the following is true?
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the network uses half duplex communications
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Which of the following is true of a network using the 10Base-T standard? select two
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- THe maximum cable distance is 100 meters and the network operates at ten megabits per second
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Which of the following is true of a network using the 1000Base-T standard? select two
answer
THe network operates at 1GB per second and the network uses copper UTP cables
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Your network follows the 1000Base-T specifications for GB ethernet. What is the maximum cable segment length allowed?
answer
100 meters
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Which of the following IP addresses belong to the Class A network 114.0.0.0? select three
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144.- 144.- 144.-
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Which of the following IP addresses are Class B addresses? select three
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132.- 190.- 129.-
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Which of the following are not valid IP addresses? select three
answer
45.- 145.- 257.-
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Which of the following is a valid IP address? select two
answer
172.- 2.-
question
What is the default subnet mask for the IP address 203.111.3.3?
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255.255.255.0
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Which of the following IP addresses are CLass C addresses? select three
answer
223.- 192.- 222.-
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Which of the following best describes an IP address class?
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The class defines the default network address portion of the IP address
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Which service can you use on your network to automatically assign IP addresses to hosts and to help prevent the same address from being assigned to two different host?
answer
DHCP
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Which TCP/IP configuration parameter identifies the router that is used to reach hosts to remote networks?
answer
Default gateway
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You are setting up a small network in you office with one Windows server and 50 Windows workstations. You want to spend as little time as possible configuring the workstations with IP addressing information. WHat should you do?
answer
install the DHCP servicer on your server
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Which of the following IP address ranges is reserved for Automatic Private IP addressing?
answer
169.254.0.1-169.254.255.254
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Which tool would you use in Windows vista/7 to manage network connections?
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Network and Sharing Center
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Which tool in Windows would you use to browse all networks and shared folders to which a user has access? select three
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- windows explorer - network - computer
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Which mechanisms could you use to resolve a hostname into its associated IP address? Select two
answer
DNS and Hosts file
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Which of the following statements about the Dynamic Host Configuration Protocol (DHCP) are true? Select two
answer
- It can deliver a DNS server address in addition to the host IP address - A workstation must request addressing information from a DHCP server
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Which of the following have a default subnet mask of 255.255.0.0? Select three
answer
129.- 191.- 168-
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Which of the following is a valid IPv6 address?
answer
FEC0::AB:9007
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Which of the following describes an IPv6 address? select two
answer
128-bit address Eight hexadecimal quarts
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Which of the following are valid IPv6 addresses? select two
answer
141: - 6384: -
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Which of the following correctly describe the most common format for expressing IPv6 addresses? select two
answer
-32 numbers, grouped using colors - hexadecimal numbers
question
What protocol is used to send email messages from a mail client to a mail server?
answer
SMTP
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You want to use your windows workstation to browse the web sites on the internet. You use a broadband DSL connection to access the Internet. Which network protocol must be installed on your workstation to do this?
answer
IP
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Which of the following protocols is non-routable an requires another protocol to enable inter network communications?
answer
NetBIOS
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You've just installed the DNS Service on a Windows server. Which port must be opened in the server's firewall to allow clients to access the service?
answer
53
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Which of the following protocols is used by an email client to retrieve messages from an email server and give users the option to keep mail messages on the server?
answer
IMAP
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Which of the following protocols do email clients use to download messages from a remote mail server?
answer
POP3
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Which IP protocol is used by Web browsers and web servers to exchange files?
answer
HTTP
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You want to allow your users to download files from a server running the IP protocol. You want to protect access to the files by requiring user authentication to access specific directories on the server. Which IP protocol should you implement to provide this capability?
answer
FTP
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Which protocols are used on the Internet to transmit Web pages from web servers to web browsers running on client Workstations? select two
answer
HTTPS HTTP
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You've enabled Remote Desktop on a Windows workstation. Which port must be opened in the servers firewall to allow remote clients to access the desktop?
answer
3389
question
You are a software developer and you are creating a multimedia streaming application. Data will be streamed form you streaming server to streaming clients over IP networks. Which transport protocol should your application use to send data between the clients and the server?
answer
UDP
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You want to implement name resolution on the Linux workstation in your company. Which protocol will you use to do this?
answer
DNS
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What IEEE wireless standards specify transmission speeds up to 54 Mbps? Select two
answer
802.11a 802.11g
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Which of the following is used on a wireless network to identify the network name?
answer
SSID
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Which of the following measures will make your wireless network less visible to the casual attacker performing ware driving?
answer
Disable SSID broadcast
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Which of the following are security protocols for wireless networks? select two
answer
WEP WPA
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Which of the following features is supplied by WPA2 on a wireless network?
answer
Encryption
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On a wireless network that is employing WEP, which type of users are allowed to authenticate through the access points?
answer
Users with the correct WEP key
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Which type of configuration would you use if you wanted to deploy 802.11n technology to communicate directly between two computers using a wireless connection?
answer
Ad hoc
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Which of the following is true when the DHCP setting is disabled in a wireless network?
answer
Wireless clients must use a static IP address within the correct IP address range to connect to the network
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Which of the following are characteristics of the 802.11g wireless standard? select two
answer
- backwards compatible with 802.11b devices - operates in the 2.4 GHz range - Maximum bandwidth of 54 Mbps
question
You are designing a wireless network network for a client. Your client needs the network to support a data rate of a least 150 Mbps. In addition, the client already has a telephone system installed that operates 2.4 GHz. Which 802.11 standard will work best in this situation?
answer
802.11n
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Which wireless standard operates at up to 54 Mbps to a maximum of 150 feet?
answer
802.11a
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Which data transmission rate is defined by the IEEE 802.11b wireless standard?
answer
11 Mbps
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Which of the following features on a wireless network allows or rejects client connections based on the hardware address?
answer
MAC address filtering
question
You want to use a wireless printer at home. The printer will be used by two computers in two different rooms. which interfaces could be used to do this?
answer
Wireless Ethernet and Blutooth
question
A portable computer connected to a printer with an infrared interface works fines inside your office. However, when you go outside it works sporadically. How can you fix this? select two
answer
- block any direct and reflected sunlight from the pathway between the pc and the printer - move the printer closer to the computer
question
Which of the following are characteristics of bluetooth? select two
answer
2.4 GHz radio wireless Ad hoc connections
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What is the maximum range of the Bluetooth 2.0 specifications for Class 1 devices?
answer
100M
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You want to use a wireless keyboard and mouse with your laptop computer. Which method should you choose?
answer
Bluetooth
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Which of the following is not an example of wireless networking communications?
answer
DSL
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You need a type of wireless connection that can transfer data between your phone, PDA, and laptop. You are transferring sensitive information. Which would be the best choice?
answer
Bluetooth
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What is the maximum transmission speed for Bluetooth devices?
answer
3 Mbps
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Which of the following protocols carry phone calls over an IP-based network?
answer
VoIP
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When configuring an ADSL installation, where should you go to install the DSL Filters?
answer
on connections leading to an analog phone
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You are configuring an ADSL connection. Which of the following will be part of the configuration? select two
answer
RJ11 connctors and Filters or splinters
question
Which of the following are used to connect a cable modem to the internet connection? select two
answer
F-type connectors and RG-6 Coaxial cable
question
You are talking with a customer support technician on the telephone. The technician recommends downloading a particular driver from Internet. When you try to connect to the internet using your modem, you can't. What is the problem?
answer
you need to hang up
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Which actions allow you to access the Internet on your Laptop via a cellular network?
answer
Install a cellular USB adapter in a open port on the laptop
question
You are installing a satellite connection so your home office can connect to the internet. Which of the following statements is true?
answer
the satellite dish must be pointed in the correct direction for communicating with the satellite
question
A healthcare organization provides mobil clinics throughout the world and needs to transfer patient statistical data to a central database via the Internet. Which network technology should you select to ensure network connectivity for any clinic located anywhere in the world, even remote areas?
answer
Satellite
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Which of the following network technologies is packaged as part of a BRI plan?
answer
ISDN
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Which type of network medium is used bu an Integrated Services Digital Network (ISDN) adapter?
answer
Copper telephone Wire
question
Which of the following are features of Basic Rate ISDN (BRI)? select three
answer
-Two data channels - dial-up connection - one control channel
question
To access the Internet through the Publicly Switched Telephone Network (PSTN), what kind of connectivity device must you use?
answer
Modem
question
You need to add security for your wireless network. You would like to use the most secure method. Which method should you implement?
answer
WPA2
question
You recently installed a small office home office wireless router. To avoid security holes and bus, what should you do to the router?
answer
update the firmware
question
Which of the following are good reasons to enable NAT?
answer
to translate between Internet IP addresses and the IP addresses on your private network
question
A customer has called and indicated that he thinks his neighbor in connecting to his wireless access point (AP) to use his high-speed internet connection. Which of the following will help resolve this issue? select two
answer
- implement WPA2 - Disable SSID broadcast on the AP
question
A user calls to report that she is experiencing intermittent problems while accessing network from her laptop computer. While she normally works from her office, today she is tryin to access the wireless network from a conference room which is across the hall and next to the elevator. What is the most likely cause of her connectivity problem?
answer
Interference is affecting the wireless signal
question
A user calls to report that she is experiencing intermittent problems while accessing the wireless network from her laptop computer. While talking to her, you discover that she is trying to work from the break room two floors above the floor where she normally works. What is most likely cause of her connectivity problem?
answer
The user is out of the effective range of the wireless access point on her floor
question
Which of the following locations will contribute the greatest amount of interference for a wireless access point? select two
answer
near backup generators and near cordless phones
question
You've just finished installing a wireless access point for a client. Which action best protects the access point from unauthorized configuration settings?
answer
changing the administrative password
question
which of the following recommendations should you follow when placing access points to provide wireless access for users within your company building?
answer
place access points above where most clients are
question
What is the least secure place to locate the access point when creating a wireless network?
answer
near a window
question
Which of the following is not one of the ranges of ip addresses defined in RFC 1918 that are commonly used behind a NAT server?
answer
169.254.0.1- 169.254.255.254
question
You need to place a wireless access point in your two story building. While trying avoid interference, which of the following is the best location for the access point?
answer
in the top floor
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You've just installed a wireless access point (AP) for your organization's network. You know that the radio signals used by the AP extend beyond your organization's building and are concerned that unauthorized users outside may be able to access your internal network. What can you do to protect the wireless network? select tow
answer
disable DHCP on the AP and Configure the AP to filter out unauthorized MAC addresses
question
You have a computer that is connected to the Internet through a NAT router. You want to use a private addressing scheme for your computer. Which of the following IP addresses could you assign to the computer? select two
answer
172.- 10.- 192.-
question
A user on your network has been moved to another office down the hall. After the move she calls you complaining that she has only occasional network access through her wireless connection. Which of the following is most likely the cause of the problem?
answer
the client system has moved too far away from the access point
question
Examine the following output: reply reply reply reply Which utility produced this output?
answer
ping
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Which command would you use to have a workstation stop using an IP address that it obtained from a DHCP server?
answer
ipconfig/ release
question
You are the network administrator of a branch office of your company. THe branch office network ispart of a WAN that covers most of the United States. Users have been complaining that they are unable to access resources over the WAN at the main headquarters. You suspect that one of the routers between your office and the main headquarters is not working properly. What TCP/ IP utility can you use to see if a router is not working properly?
answer
tracert
question
You are troubleshooting network connectivity issues on a workstation. Which command would you use to request new IP configuration information form a DHCP server?
answer
ipconfig/ renew
question
You work in an office that uses Linux and Windows servers. the network uses the IP protocol. You are sitting at a Windows workstation and an application your are using is unable to connect to a windows server named FileSrv2. Which commands can you use to test network connectivity between your workstation and the server? select two
answer
Traceroute and ping
question
Which utility would you use to view current connections and active sessions and ports on a computer?
answer
netstat
question
You are troubleshooting network connectivity issues on a Windows workstation. Which command would you use to view the MAC address of the network adapter?
answer
ipconfig/ all
question
You suspect large packets are being dropped on your network because of their large size. Which utililty can you use to confirm your suspicion?
answer
Ping -l
question
Examine the following output: server address name address Which command produced this output?
answer
nslookup
question
Which of the following tools allow for remote management of servers? select tow
answer
telnet and SSH
question
Examine the following output: 4 5 6 7 8 Which command produced this output?
answer
tracert
question
Which troubleshooting a network connection, you decide to use the ping command. Which switch allows for a continuous ping?
answer
-t
question
A user is having problems connecting using host names. Which of the following commands will help you troubleshoot this problem?
answer
nslookup
question
You have a small network. All computers are running Windows 7. Yo have created a HomeGroup for your network. You have a laptop that you use at work that runs windows 7 Professional. You connect the laptop to the network. You are unable to see shared files on the other computer. What should you do?
answer
Join the laptop to the HomeGroup
question
You have a Windows 7 computer connected to a small network that is not part of a domain. You want to see this computers and printers on the network. Which feature would you use?
answer
HomeGroup
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