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Free N10-003 Exam Preparation Questions Exam N10-003: Network+ (2005)

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Question:1 What command is used to view all of the TCP/IP (Transmission Control Protocol/Internet Protocol) configuration on a Windows 98 client? A. ifconfig /all B. winipcfg /all C. ipconfig /TCP (Transmission Control Protocol) release D. winipcfg /release Answer: B Explanation: winipcfg, ipconfig and ifconfig displays the current TCP/IP configuration, including the current IP address, DNS configuration, WINS configuration, and default gateway, on a computer. winipcfg is the Windows 9x version used on Windows 95, Windows 98 and Windows Millennium Edition clients. These commands support three switches: /all, which displays the current TCP/IP configuration; /release, which releases the TCP/IP configuration obtained from DHCP; and /renew, which requests a new TCP/IP configuration from the DHCP server. Incorrect Answers: A: ifconfig is the UNIX/Linux version of winipcfg. It is used on UNIX and Linux computers, not on Windows 98 computers. C: ipconfig is the Windows NT version of winipcfg. It is used on Windows 2000, Windows XP and Windows Server 2003 computers, not on Windows 98 computers. D: The /release switch releases the TCP/IP configuration obtained from DHCP. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 186-190. Question:2 You work as a network technician at Company.com. Company.com has a Windows network. You need to troubleshoot NetBIOS (Network Basic Input/Output System) over TCP/IP (Transmission Control Protocol/Internet Protocol) from Workstation1 to Workstation2. Which utility should you use? A. ping B. tracert C. nbtstat D. netstat Answer: C Explanation: nbtstat is used to display NetBIOS over TCP/IP statistics, to display statistics for incoming and outgoing NetBIOS over TCP/IP connections, and to resolve NetBIOS names. Incorrect Answers: A: ping is used to test connectivity between to hosts. It is not used to test NetBIOS over TCP/IP. B: tracert displays a list of router interfaces that a TCP/IP packet passes through on its way to a destination, including destinations on the Internet. This list includes all the DNS names and IP addresses of the routers that the packet is passing through. It also counts the number of hops between a local computer and a destination host. C: netstat is used to display the inbound and outbound TCP/IP connections on a local computer. It provides packet statistics, such as the number of packets that have been sent and received, the number of errors, etc. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp.

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167-169, 174-177, 184-191. Question:3 Which of the following commands displays the MAC (Media Access Control) address of a given computer? A. nslookup B. ipconfig /all C. nbtstat D. netstat Answer: B Explanation: ipconfig /all displays the current TCP/IP configuration, including the current IP address, MAC address, DNS configuration, WINS configuration, and default gateway, on a computer. (188-190) Incorrect Answers: A: nslookup displays information about a particular domain name, the name servers that serve it, and how they are configured C: nbtstat is used to display NetBIOS over TCP/IP statistics, to display statistics for incoming and outgoing NetBIOS over TCP/IP connections, and to resolve NetBIOS names. The –a switch displays a remote computer’s NetBIOS name table, which lists all the NetBIOS names that the remote computer knows. (174-177 D: netstat is used to display the inbound and outbound TCP/IP connections on a local computer. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 174-177, 186-190, 194-195. Question:4 After patching and rebooting a network DHCP (Dynamic Host Configuration Protocol) server, some clients who were able to access resources begin to lose connectivity. What utility can be used to regain connectivity to the network? A. nbtstat B. arp C. tracert/traceroute D. ipconfig/ifconfig Answer: D Explanation: ipconfig and ifconfig displays the current TCP/IP configuration, including the current IP address, DNS configuration, WINS configuration, and default gateway, on a computer. ipconfig is the Windows NT version while ifconfig is the UNIX/Linux version of the utility. These commands support three switches: /all, which displays the current TCP/IP configuration; /release, which releases the TCP/IP configuration obtained from DHCP; and /renew, which requests a new TCP/IP configuration from the DHCP server. Incorrect Answers: A: nbtstat is used to display NetBIOS over TCP/IP statistics, to display statistics for incoming andoutgoing NetBIOS over TCP/IP connections, and to resolve NetBIOS names. The –a switch displays a remote computer’s NetBIOS name table, which lists all the NetBIOS names that the remote computer knows. B: arp translates IP addresses to MAC addresses. It is primarily used for resolving duplicate IP addresses. C: tracert/traceroute displays a list of router interfaces that a TCP/IP packet passes through on its way to a destination, including destinations on the Internet. This list includes all the DNS names and IP addresses of the routers that the packet is passing through. It also counts the number of hops between a local computer and a destination host.

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References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, pp.164-166, 174-177, 188-191. Question:5 Identify the utility being used given the output: Interface: 206.212.36.18 on Interface 1 Internet Address Physical Address Type 206.212.36.9 00-00-21-64-91-f2 Dynamic 206.212.36.12 00-00-21-1b-4a-a7 Dynamic A. netstat B. arp C. nbtstat D. tracert/traceroute

2005,

Answer: B Explanation: arp translates IP addresses to MAC addresses. It is primarily used for resolving duplicate IP addressesand displays a list of IP addresses and their corresponding MAC addresses as shown in the output above. Incorrect Answers: A: netstat is used to display the inbound and outbound TCP/IP connections on a local computer. It provides packet statistics, such as the number of packets that have been sent and received, the number of errors, etc. C: nbtstat is used to display NetBIOS over TCP/IP statistics, to display statistics for incoming and outgoing NetBIOS over TCP/IP connections, and to resolve NetBIOS names. D: tracert/traceroute displays a list of router interfaces that a TCP/IP packet passes through on its way to a destination, including destinations on the Internet. This list includes all the DNS n ames and IPaddresses of the routers that the packet is passing through. It also counts the number of hops between a local computer and a destination host. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp.164-169, 174-175, 191. Question:6 Given the following output, which utility was used? Interface 10.10.10.1 on Interface 0x1000004 Internet Address Physical Address Type 10.10.10.5 00-e0-29-62-0d-de dynamic 10.10.10.11 00-00-08-fd-97-fa static A. arp B. traceroute C. ping D. ipconfig Answer: A Explanation: arp translates IP addresses to MAC addresses. It is primarily used for resolving duplicate IP addresses and displays a list of IP addresses and their corresponding MAC addresses as shown in the output above. Incorrect Answers: B: traceroute displays a list of router interfaces that a TCP/IP packet passes through on its way to a destination, including destinations on the Internet. This list includes all the DNS names and IP addresses of the routers that the packet is passing through. It also counts the number of hops between a local

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computer and a destination host. C: ping is used to test connectivity to a remote host. D: ipconfig displays the current TCP/IP configuration, including the current IP address, DNS configuration, WINS configuration, and default gateway, on a computer. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005,

netstat is used to display the inbound and outbound TCP/IP connections on a local computer, pp.164-166, 184, 188-191. Question:7 Which command generated the following output? Active Connections Proto Local Address TCP Company1:3006 TCP Company1:3021

Foreign Address 192.168.0.2:Microsoft 192.168.0.246:HTTP

State Established Established

A. nbtstat B. netstat C. arp D. ipconfig

Answer: B Explanation:

including the protocol, port number, IP address of the remote host, and the connection state. Incorrect Answers: A: nbtstat is used to display NetBIOS over TCP/IP statistics, to display statistics for incoming and outgoing NetBIOS over TCP/IP connections, and to resolve NetBIOS names. (174-177) C: arp translates IP addresses to MAC addresses. It is primarily used for resolving duplicate IP addresses (164-166) D: ipconfig displays the current TCP/IP configuration, including the current IP address, DNS

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configuration, WINS configuration, and default gateway, on a computer. (188-190) References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp.164-169, 174-177, 188-190. Question:8 The diagnostic tool would produce the following output? 1 Router1 (192.168.0.1) 2.0 ms 1.0 ms 2.0 ms 2 Server.net.com (4.150.6.3) 18.0ms 12.0ms 32.0ms 3 time.net.com (2.12.14.1) 240ms 120ms 300ms A. traceroute B. ping C. ifconfig D. winipcfg Answer: A Explanation: traceroute displays a list of router interfaces that a TCP/IP packet passes through on its way to a destination, including destinations on the Internet. This list includes all the DNS names and IP addresses of the routers that the packet is passing through as shown in the output above. Incorrect Answers: B: ping is used to test connectivity between two hosts by sending an echo request to the remote host. The output from this command would indicate the replies from the remote host. C, D: winipcfg, ipconfig and ifconfig displays the current TCP/IP configuration, including the current IP address, DNS configuration, WINS configuration, and default gateway, on a computer. Winipcfg is the Windows 9x version used on Windows 95, Windows 98 and Windows Millennium Edition clients. These commands support three switches: /all, which displays the current TCP/IP configuration; /release, which releases the TCP/IP configuration obtained from DHCP; and /renew, which requests a new TCP/IP configuration from the DHCP server. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 174-177, 186-190, 194-195. Question:9 A business with a DSL (Digital Subscriber Line) modem lost connectivity and the secretary changed one of the network settings to try to fix it. The settings are now: IP address: 128.210.5.21 Subnet mask: 255.0.0.0 Gateway: 128.210.5.1 DNS server: 128.210.5.11 Given the information above, which of the following identifies the settings that has changed? A. IP (Internet Protocol) address B. Subnet mask C. Gateway D. DNS (Domain Name Service) server Answer: B Explanation: The IP addresses128.210.5.21, used by the host, 128.210.5.1, used by the gateway, and 128.210.5.11, used by the DNS server, are all class B IP addresses. Class B IP addresses use the subnet mask 255.255.0.0, not 255.0.0.0, which is used for class A IP addresses. Thus, the subnet mask is incorrect and is thus the setting that has been changed. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, pp.126-128.

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2005,


Question:10 You work as a network technician at Company.com. You have just installed a new NIC (Network Interface Card) in a computer and attached a cable to connect the computer to a hub. If the NIC (Network Interface Card) is functioning correctly and the network is up, which of the following will you see on the NIC (Network Interface Card)? A. The amber light is flashing occasionally and the green light is lit steadily. B. The amber light is flashing continually, the green light is lit steadily, and neither light will be on until data is transferred. C. The amber light is lit and steady and the green light is flashing continually. D. The amber light is flashing occasionally, the green light is lit steadily, and neither light will be on until data is transferred. Answer: A Explanation: A NIC has two lights: a green light that indicates network connectivity, and is lit so long as there is network connectivity; and an amber light that flashes when collisions occurs. Collisions are common on an Ethernet network. Therefore the amber light will flash occasionally. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 430-431. Question:11 Which LED on a NIC should you check FIRST to identify the problem when a workstation suddenly fails to connect to the network? A. Link B. Activity C. Collision D. Power Answer: A Explanation: When troubleshooting a network problem you should check if there is a physical connection between the NIC and the hub or switch. The link LED on the NIC indicates that there is a connection to the network and should be the first thing you check. Incorrect Answers: B, D: A NIC will not have a Power LED or an Activity LED. These are found on connectivity devise such as modems, routers, hubs and switches. C: The collision LED indicates that an Ethernet collision has occurred. This light will blink occasionally because collisions are common on Ethernet networks. However, you should first check that there is a connection to the network. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 411-412. Question:12 You work as the network administrator at Company.com. You have provided a user with full access rights to a folder share. When the user opens a file in the folder share, she finds that she cannot modify the file contents. What is the most likely cause of this problem? A. The group rights filter has been changed through the GPO to disallow file access. B. The file registered has been pulled from cache memory and is not writeable. C. The file has been opened by another user and is open for read only. D. The file has been pulled from the backup source not the tree directory. Answer: C

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Question:13 You work as the network technician at Company.com. You are troubleshooting a connectivity problem to the www.Company.com web site. You receive a time out when you ping the web site by name. You verify the TCP/IP configuration on the local computer. You successfully ping to the default gateway and the web server by IP address. Which is the probable cause of this problem? A. The DNS server is down. B. The DHCP is down. C. The LAN is down. D. The router is down. Answer: A Explanation: In this case you can ping the IP address but not the host name. Therefore there is a problem with host name to IP address resolution. DNS is responsible for host name to IP address resolution and is the most probable cause of the problem. Incorrect Answers: B: DHCP is responsible for automating the assignment of IP configurations to computer systemson a TCP/IP network. C, D: you can ping the IP address of both the web server and the default gateway, therefore therecan be no problem with the LAN or the router. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 136-144, 184. Question:14 You work as a network technician at Company.com. Company user complains that she can no longer attach to a server using its host name; however, she can attach to it using the IP (internet Protocol) address. Why? A. The server is in the wrong subnet. B. The server that they are trying to connect to is not registered in DHCP (Dynamic Host Configuration Protocol). C. The server that they are trying to connect to has lost its registration in DNS (Domain Name Service). D. The server that they are trying to connect to has WINS (Windows Internet Name Service) enabled. Answer: C Explanation: DNS is responsible for the translation of host names to IP addresses. In this scenario, the user cannot ping by host name but can ping by IP address. The problem thus lies with name resolution. It is possible that the server has lost its registration in DNS. Incorrect Answers: A: The ping utility is used to test connectivity to a remote host. Ping traffic is able to pass through routers. Therefore the subnet on which the destination host resides is not of relevance. Also, the user is able to ping the server by IP address. B: DHCP is used to automate the assignment of TCP/IP configurations to DHCP hosts. This configuration includes IP address, subnet mask, DNS server, WINS server and default gateway. In this scenario, the user is able to ping the server by IP address. Therefore the server has an appropriate TCP/IP configuration. Thus, the problem cannot be with DHCP leasing. D: WINS is used for NetBIOS name to IP Address resolution. However, the user is attempting to connect to a server by host name. Host name to IP address resolution is provided by DNS. References:

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David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 138-144, 185-186. Question:15 You work as an administrator at Company.com. An end user complains that he cannot log in to the network, although he could yesterday. Last night you replaced an ISA (Industry Standard Architecture) Token Ring NIC (Network Interface Card) with a PCI (Peripheral Component Interconnect) Token Ring NIC (Network Interface Card) in the users computer on a 16 Mbps (Megabits per second) LAN (Local Area Network). What should you do NEXT to resolve this problem? A. Check the MAU (Multistation Access Unit) B. Check the processor speed C. Check the user password D. Check the NIC (Network Interface Card) Answer: D Explanation: When troubleshooting, you should check the condition that changed first, as this is the most likely cause of the problem. In this case we changed the NIC. Therefore, we should check the NIC to ensure that it is operating properly. Incorrect Answers: A: Token ring uses a logical ring topology but a physical star topology in which the MAU is the central device connecting the various stations. Thus, it there was a problem with the MAU, more than one user would be affected. Also, you should first check the condition that changed since the system last worked, in this case, the NIC. B: The processor did not change. It should therefore be operating at the same speed as before. Also, the processor speed has no bearing on network connectivity. C: The user password might have been changed for some reason or other; however, you should first check the condition that changed since the system last worked, in this case, the NIC. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 5758, 65, 416-417. Question:16 You are the network administrator at Company.com. A user complains that she cannot access resources on the network. The ping command from the user’s computer to a server fails by both host name and IP address. When you run the ipconfig command, you receive an IP (Internet Protocol) address that is not in the correct subnet. What is the probable cause of this problem? A. The DHCP (Dynamic Host Configuration Protocol) server has lost connection to the DNS (Domain Name Service). B. Someone has enabled an additional DHCP (Dynamic Host Configuration Protocol) server. C. The WINS (Windows Internet Name Service) is offline. D. The DNS (Domain Name Service) is offline. Answer: B Explanation: It seems a rouge DHCP server was enabled on the network. The user’s computer probably received its lease from the rouge DHCP server, which does not have the same address pool as the authorized DHCP server. A: DNS is required for host name to IP address resolution. If the DHCP server loses connection to the DNS server, it will not be able to lease IP addresses on the network. However, the IP addresses that have been leased will still be in place. C, D: WINS and DNS are required for NetBIOS name to IP address resolution and host IP address resolution respectively. However, ping by IP address failed, therefore we cannot assume that the problem is related to name resolution.

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References: James Chellis, Paul Robichaux and Matthew Sheltz, MCSA/MCSE: Windows Server 2003 Network Infrastructure Implementation, Management, and Maintenance Study Guide, Sybex, Alameda CA, 2003, pp. 229-230. Question:17 You work as an administrator at Company.com. You configure DHCP (Dynamic Host Configuration Protocol) services for the network using a PDC (Primary Domain Controller) and BDC (Backup Domain Controller) each with a range of 192.168.0.1 to 192.168.0.254 and a class subnet of 255.255.255.0. However, DHCP (Dynamic Host Configuration Protocol) errors are occurring. How can these errors be resolved? A. Change the default subnet to 255.255.0.0 to increase the number of allowable IP (Internet Protocol) addresses to prevent collisions. B. The machines are holding IP (Internet Protocol) addresses in cache memory. Reboot to renew IP (Internet Protocol) address. C. Configure BootP (Boot Protocol) on the server when the IP (Internet Protocol) class subnets are split prior to implementing the scope. D. Split the scope addresses between the servers assigning 192.168.0.1 through 192.168.0.127 for the PDC (Primary Domain Controller) and 192.168.0.128 through 192.168.0.254 for the BDC (Backup Domain controller). Answer: D Explanation: In this scenario, we have two DHCP servers leasing the same IP address scope. This is the cause of the DHCP errors as both DHCP servers are trying to lease the same addresses. We can overcome these problems by removing one of the DHCP servers, or by splitting the IP address scope between the two. Incorrect Answers: A: The IP address range 192.168.0.1 through 192.168.0.127 is a class C range which uses the 255.255.255.0 subnet mask. The subnet mask 255.255.0.0 is used for class B. Changing the subnet mask to 255.255.0.0 would thus not be the correct option. B: DHCP leases are held for the duration of the DHCP lease period and are not renewed every time the machine reboots. You must use the winipcfg/ipconfig/ifconfig utility to release and renew a DHCP lease. C: BootP is required to forward DHCP traffic over a router and should be configured on the router, not the DHCP server. References: James Chellis, Paul Robichaux and Matthew Sheltz, MCSA/MCSE: Windows Server 2003Network Infrastructure Implementation, Management, and Maintenance Study Guide, Sybex, Alameda CA, 2003, pp. 223-224, 230, 254. David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005,pp. 186-190. Question:18 You cannot reach a web site on a host computer but you can ping the host name and Telnet to the host name. What is the source of the problem? A. The host does not have a DNS entry. B. The host HTTP is down. C. The host does not have a WINS entry. D. The host is down. Answer: B Explanation: Web browsers use HTTP to access web sites. If HTTP is down or port 80, which is used for HTTP traffic, is blocked, you won’t be able to access the web site. Incorrect Answers:

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A: DNS is used to provide host name to IP Address translation, thus, if you can ping and telnet to the host name, then there can be no problem with DNS. C: WINS provides NetBIOS name to IP Address translation. This is not required to access a web site. D: ping is used to test connectivity to a remote host. If the remote host is down, ping will not be successful. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. N10-003 97 117, 136-144, 184. Question:19 You work as a network administrator at Company.com. You have just added a new DNS (Domain Name Service) server to a network and removed the old DNS (Domain Name Service) server. The IP (Internet Protocol) address of the new server is different, and the DHCP (Dynamic Host Configuration Protocol) server was updated to reflect this change. Certain computers can connect to www.Company.com while others cannot. Which of the following computers will be able to connect to www.Company.com? A. Any computer that has not released and renewed their DHCP (Dynamic Host Configuration Protocol) lease. B. Any statically assigned workstation. C. Any computer that has released and renewed their DHCP (Dynamic Host Configuration Protocol) lease. D. Any computer that does not have a NIC (Network Interface Card) Answer: C Explanation: Computers must release and renew their DHCP leases in order to receive the new configuration that has been updated on the DHCP server. Once they receive this new configuration, they will be able to access the new DNS server. Incorrect Answers: A: Computers that have not released and renewed their DHCP leases will still be configured with the IP address for the old DNS server. Only when they renew the DHCP leases will the computers be configured with the updated DHCP settings. B: Computers with static IP addresses don’t get their TCP/IP configurations from DHCP. Therefore they won’t the updated configurations from DHCP and will not be able to connect to the new DNS server. D: Computers that do not have a NIC don’t require an IP address as they have no network connectivity. References: James Chellis, Paul Robichaux and Matthew Sheltz, MCSA/MCSE: Windows Server 2003 Network Infrastructure Implementation, Management, and Maintenance Study Guide, Sybex, Alameda CA, 2003, pp. 223-227. Question:20 You work as a network administrator at Company.com. You change the lease time of the DHCP scope from one week to one day. What affect will this have on the end users? A. The users will have to re-logon every day now. B. The users will have to manually release and renew their IP addresses to continue working on the network. C. The users will not be affected by the change. D. The users will have to shut their computers down for the duration of the lease to obtain a new lease. Answer: C Explanation: Changing the lease time will not affect the currently assigned IP configurations. The current IP settings will still be valid but will now be renewed earlier. Thus, the users will not be affected by the change. Incorrect Answers: A: DHCP does not determine how often a user must re-logon to the computer. It only provides IP

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configurations settings to the computer. B: Changing the lease time will not affect the currently assigned IP configurations. The current IP settings will still be valid but will now be renewed earlier. D: This doesn’t make sense in a network environment. If the lease time is increased to 30 days, no work will be done for a month – definitely not! References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 144, 154. Question:21 You work as a network administrator at Company.com. Your DNS server has just suffered a catastrophic failure. What affect will this have on the DNS clients? A. They will be unable to renew their IP addresses. B. They will be unable to reference a server by host name. C. They will be unable to reference a server by NetBIOS name. D. They will be unable to renew their IPX address. Answer: B Explanation: DNS is responsible for host name to IP address resolution. Thus, if the DNS server is down, name resolution from host name to IP address will not be possible; thus DNS clients will not be able to reference a server by host name. Incorrect Answers: A: The DHCP server is responsible for assigning and renewing IP addresses, not the DNS server. C: WINS is responsible for NetBIOS name to IP addresses resolution. DNS is responsible for host name to IP address resolution. D: There is not DHCP system for IPX. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 136-142, 144. Question:22 The DHCP (Dynamic Host Configuration Protocol) server in Subnet A is removed. The DHCP (Dynamic Host Configuration Protocol) server in Subnet B is set with a DHCP (Dynamic Host Configuration Protocol) scope for Subnet A. After that, users in Subnet A still cannot receive IP (Internet Protocol) addresses. What needs to be done to correct this problem? What needs to be done to correct this problem? A. Install a proxy server on Subnet A B. Install a DHCP (Dynamic Host Configuration Protocol) relay agent on a server in Subnet B C. Install a DHCP (Dynamic Host Configuration Protocol) relay agent on the DHCP (Dynamic Host Configuration Protocol) server in Subnet B D. Install a DHCP (Dynamic Host Configuration Protocol) relay agent on a server in Subnet A Answer: D Explanation: The DHCP server in Subnet A failed so we can assume that the DHCP clients on Subnet A cannot reach a DHCP server to renew their DHCP leases. This can be overcome by installing a DHCP relay agent on the affected subnet. Note: This is a vague question. The real problem here is that the DHCP server in Subnet B has a DHCP address but the other DHCP server has failed. This means that the DHCP server in Subnet B cannot get a DHCP lease, unless there is another DHCP server on the network. We should preferably configure the

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DHCP server with a static IP address. Incorrect Answers: A: A proxy server is used to protect a network from attacker on the Internet. It is not used to forward DHCP requests. B, C: The DHCP server in Subnet A failed so we can assume that the DHCP clients on Subnet A cannot reach a DHCP server to renew their DHCP leases. This can be overcome by installing a DHCP relay agent on the network. However, the DHCP relay agent should be installed on the affected Subnet, not Subnet B. References: James Chellis, Paul Robichaux and Matthew Sheltz, MCSA/MCSE: Windows Server 2003 Network Infrastructure Implementation, Management, and Maintenance Study Guide, Sybex, Alameda CA, 2003, pp. 228, 356-357. Question:23 If a rogue residential gateway that is running DHCP (Dynamic Host Configuration Protocol) is installed in a network, and the computers in the network have static IP (Internet Protocol) addresses assigned, what problems might occur on the network? A. There will be no Internet access B. The computer IP (Internet Protocol) address will change. C. There should be no problems. D. There will be a routing loop between the residential gateway and the original router. Answer: A Explanation: The network computers have statically assigned IP addresses, the gateway address might not be configured, in which case the network computers might use the rouge gateway and would thus, not be able to connect to the Internet. Incorrect Answers: B: The network computers’ IP addresses are static addresses and can only be changed manually. The presence of a rogue residential gateway will not change the static IP addresses. C: There would be no problems is the gateway address was configured statically on the network computers. However, the gateway address is not required for static IP addressing; only the IP address and subnet mask is required. Thus, if the gateway address is not configured, the network computers might use the rouge gateway and would not be able to connect to the Internet. D: A router can update its routing table automatically, to discover which networks are attached to the other routers, or the routing table can be updated manually by the network administrator. This routing table is used to decide how packets should be delivered and helps prevent routing loops. References: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 7276, 125-127, 145-148. Question:24 You work as a network administrator at Company.com. You need to reduce the bandwidth used between Company and the Internet. Which of the following could be implemented to accomplish this? A. WINS (Windows Internet Name Service) server B. Proxy server C. DHCP (Dynamic Host Configuration Protocol) server D. HTTP (Hypertext Transfer Protocol) server Answer: B Explanation: A proxy server handles traffic to the Internet on behalf of the clients on the internal network. It can be configured to control which the Internet requests can be permitted and which will be denied. This will

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control which web sites users can access and which they cannot, reducing Internet bandwidth usage. Incorrect Answers: A: A WINS server is used for NetBIOS name resolution in a Windows network. C: A DHCP server is used to automatically assign TCP/IP configurations to hosts on a network. D: An HTTP server is a web server that is used to host web sites. Reference: David Groth and Toby Skandier, Network+ Study Guide (4th Edition), Sybex, Alameda CA, 2005, pp. 134-13, 142-144. Question: 25 Which one of the following security protocols provides protection at the network layer? A - IPSec (Internet Protocol Security) B - PPTP (Point-to-Point Tunneling Protocol) C - L2TP (Layer 2 Tunneling Protocol) D - L2F (Layer 2 Forwarding) Answer: A Question: 26 All of the following IP (Internet Protocol) addresses are routable EXCEPT: A - 126.14.254.1 B 172.16.16.1 C 192.10.20.1 D 201.35.44.1 Answer: B Question: 27 Which one of the following is an example of an illegal sub net mask for an IP (Internet Protocol) address? A - 255.255.255.128 B 255.255.255.192 C 255.255.255.256 D 255.0.0.0 Answer: C Question: 28 Which protocol does a diskless workstation use to obtain a network address? A - FTP (File Transfer Protocol) B - DNS (Domain Name Service)C - ARP (Address Resolution Protocol) D - BootP (Boot Protocol) Answer: D Question: 29 The IPSec (Internet Protocol Security) protocol suite can secure network transmissions by: A - increasing encryption to a 128-bit cipher. B - encapsulating the data payload. C - double encrypting the data payload. D - adding a second password. Answer: B Question: 30 An administrator is unsuccessful when attempting to ping a network device on a remote site witha firewall in between. In order for the administrator to be successful, what protocol needs to beallowed through the firewall? A - SNMP (Simple Network Management Protocol) B - UDP (User Datagram Protocol) C - ICMP (Internet Control Message Protocol) D - IGMP (Internet Group Multicast Protocol) Answer: C

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Question: 31 Which protocol is used to convert a web site URL (Uniform Resource Locator) to an IP (Internet Protocol) address? A - NAT (Network Address Translation)B - WINS (Windows Internet Name Service) C - ICS (Internet Connection Sharing) D - DNS (Domain Name Service) Answer: D Question: 32 A client workstation can authenticate user names and passwords to which type of server? A - DNS (Domain Name Service)B - DHCP (Dynamic Host Configuration Protocol) C - PDC (Primary Domain Controller) D - WINS (Windows Internet Name Service) Answer: C Question: 33 What are the minimum capabilities needed for a client to connect to a LAN (Local Area Network)? A - IP (Internet Protocol) address and DNS (Domain Name Service) B - IP (Internet Protocol) address and gateway C - IP (Internet Protocol) address and subnet mask D - IP (Internet Protocol) address and gateway, subnet mask Answer: C Question: 34 What enables a UNIX computer to access exported file systems from other UNIX computers? A - SMS (Storage Management Services) B - NFS (Network File System) C - NetBIOS (Network Basic Input / Output System) D - NetBEUI (Network Basic Input / Output Extended User Interface) Answer: B Question: 35 How can a system administrator verify that a backup is valid? A - Run parallel backups B - Check the tape archive C - Restore the backup D - Verify the archive bit Answer: C Question: 36 A company wishes to establish a secure network connection with a sister company over the Internet. Both companies must have access to each other resources without allowing general public access. What describes the type of network that should be employed? A - Extranet B - Subnet C - WAN (Wide Area Network) D - Intranet Answer: A Question: 37 A technician needs to make ten 5-foot (ten 1.52 meter) Category 5 UTP (Unshielded Twisted Pair) patch cables. Which tool should be used? A - Crimper B - Optical tester C - Tone generator D - Punch down tool Answer: A Question: 38 A user has set up filtering on an Internet router. All FTP (File Transfer Protocol) servers on the Internet have stopped responding to Internet requests. What port must be opened to allow FTP (File Transfer Protocol) access? A - 21 B - 25 C - 53 D - 110 Answer: A Question: 39 On an Apple File Service share point configured in Mac OS X Server 10.3, the permissions for new files and folders can be set to default to: A - CIFS (Common Internet File System) permissions. B - NTFS (New Technology File System)

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permissions. C - MAC OS 9 permissions. D - Standard UNIX permissions. Answer: D Question: 40 After creating a print queue object in the NDS (NetWare Directory Services) tree, the systemsadministrator creates the printer object. Users are unable to connect to the printer. What is thelikely cause? A - A profile object must be created for each user. B - Container objects must be associated with the printer object. C - The print queue must be associated with the printer object. D - The global bin script must be associated with the printer object. Answer: C Question: 41 It an authentication protocol is being implemented that uses a private key and a session key, the protocol is: A - L2TP (Layer 2 Tunneling Protocol).B - Kerberos.C - IPSec (Internet Protocol Security). D - PPTP (Point-to-Point Tunneling Protocol). Answer: B Question: 42 A CIO (Chief Information Officer) wants all computers protected from worms and trojans. How can the network administrator accomplish this requirement? A - Implement an EFS (Encrypting File System) B - Install AV (Anti-Virus) software C - Install a firewall D - Install a proxy Answer: B Question: 43 In order to configure a dial-up connection to an ISP (Internet Service Provider) in Windows 2000, what steps need to be performed? A - Right click My Network Places, Make New Connection, Remote B - Start, Make New Connection, Dial-up Connections C - Start, System, Make New Connection D - Right click My Network Places, Properties, Make New Connection Answer: D Question: 44 Fault tolerance of both the hard disk controller and drives can be accomplished using what RAID (Redundant Array of Independent Disks) configuration? A - Mirroring B - Striping C - Striping with parity D - Duplexing Answer: D Question: 45 In order to assure fault tolerance in the event of a disk controller failure, which level of RAID (Redundant Array of Independent Disks) should be implemented? A-0B-1 C-3D-5 Answer: B Question: 46 A network administrator manages a LAN (Local Area Network) of ten client machines connected to a switch. The administrator needs to segment the network to cut down broadcast, improve security, and create an additional subnet. Which one of the following options provides all three solutions? A - Install an additional switch and connect half the machines to the switch B - Install a bridge on the switch C - Implement a VLAN (Virtual Local Area Network) on the switch D - Implement a firewall on the switch Answer: C Question: 47

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Which one of the following directory services is hierarchical in design? A - Windows AD (Active Directory) B - Novell NetWare Bindery C - NT (New Technology) 4.0 Domain D Linux / etc / password file Answer: A Question: 48 A user at a workstation within a workgroup tries to access a file server in the domain CompTlA.? The user exists in the CompTIA? domain as smith.? Which login credential should be used to access the file server? A - jsmith B - \\jsmith C - \\CompTlA\jsmith D - CompTIA\jsmith Answer: D Question: 49 A company disaster recovery plan requires that a hot site be maintained for fault tolerance. Which of the following would achieve this goal? A - Data is backed up on tape and stored at an offsite location. B - An exact duplicate of the infrastructure is stored onsite. C - An exact duplicate of the infrastructure is mirrored offsite. D - Data is backed up on a second hard drive in a server. Answer: C Question: 50 Which one of the following choices is a benefit of using a firewall? A - It can increase total bandwidth on a LAN (Local Area Network).B - It can resolve more DNS (Domain Name Service) entries. C - It can block individual IP (Internet Protocol) addresses. D - It can provide multicasting services. Answer: C Question: 51 What command is typed to display the arp table? A - arp B - arp f_addr Answer: A Question: 52 A network administrator installs a Linux DHCP (Dynamic Host Configuration Protocol) server. To configure the Windows clients to use the Linux DHCP (Dynamic Host Configuration Protocol) server, what must be configured on the Windows clients? A - Install a Linux compatible DHCP (Dynamic Host Configuration Protocol) client B - Enable “Obtain IP (Internet Protocol) address automatically� C - Install WINS (Windows Internet Name Service) D Windows clients are not compatible with Linux DHCP (Dynamic Host Configuration Protocol) server Answer: B Question: 53 A network administrator has repaired a severed connection on a bus topology network. To complete the repair a terminator was placed on each severed cable end. Which characteristic isnow observed on the network? A - Bandwidth has increased. B - Some workstations do not communicate with other workstations. C There are more collisions on the network. D - All workstations are able to communicate with all other workstations. Answer: B Question: 54 A new e-mail server has been added to a network. The administrator needs to change the publicmail A record for the domain name to the new server IP (Internet Protocol). Whom should theadministrator contact to make this change?

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A - Any ISP (Internet Service Provider) who has a public DNS (Domain Name Service). B - No one; the change will happen automatically. C - The domain registrar where the domain was purchased. D - The ISP (Internet Service Provider) who hosts the authoritative DNS (Domain Name Service) servers for the domain. Answer: D Question: 55 A network technician is troubleshooting an Ethernet workstation connectivity error. They haveverified the 100BASE-TX cabling is good from the wiring closet to the wall jack. They decided to swap the existing patch cable with the Category 3 phone cable because they know the phone is functioning. The workstation still has no connectivity, Why did this procedure NOT correct the problem? A - Category 1 cable is required for 100BASE-TX Ethernet. B - The workstation Ethernet driver must be reloaded when the cable is changed. C - Category 3 phone cable must be terminated to work with 100BASE-TX. D - Phone cable is the incorrect cable; Category 5 is required. Answer: D Question: 56 A computer that is working on a network is unplugged and then plugged into another switch with a new cable. The link LED (Light Emitting Diode) on the NIC (Network Interface Card) does not come on. All of the following could be the source of the problem EXCEPT that A - the port on the switch is bad. B - the cable has a short in it. C - the wrong type of cable is used. D the NIC (Network Interface Card) is bad. Answer: D Question: 57 There are three Windows 2000 servers, a NetWare server, and ten Windows 2000 clients. A network technician installs NWLINK on the Windows servers and clients. yet the clients cannot access the Novell server. What step must be taken so that the clients can access the Novell server? A - CSNW (Client Services for NetWare) on the Windows 2000 servers B - CSNW (Client Services for NetWare) on the Windows clients C - GSNW (Gateway Services for NetWare) on the NetWare server D GSNW (Gateway Services for NetWare) on the Windows clients Answer: B Question: 58 A company houses all servers in Building A. Users in Building A are able to access resources with no problem. Users in Building B cannot access resources in Building A. What could be the problem? A - The uplink cable between the switch in Building A and the switch in Building B B - Both Buildings A and B are on the same VLAN (Virtual Local Area Network) C - The cable between the switch insulating the servers in Building A D - Replace the switches with hubs Answer: A Question: 59 A network technician is troubleshooting a remote home user computer that is behind a SOHO (Small Office / Home Office) router running NAT (Network Address Translation). The technician wants to ping the IP (Internet Protocol) address of the remote user computer. The technician has the user perform an ipconfig command and verifies that the user IP (Internet Protocol) address is 192.168.1.100. The home user can also access the Internet with no trouble. The technician then pings the user IP (Internet Protocol) address but it times out. Why is the ping unsuccessful? A - The SOHO (Small Office / Home Office) router is down. B - The user has a different subnet mask than that of the SOHO (Small Office / Home Office) router. C - This IP (Internet Protocol) address cannot be pinged remotely. D - This IP (Internet Protocol) address is in a different subnet class than the IP (Internet Protocol) address of the technician computer.

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Answer: C Question: 60 A DHCP (Dynamic Host Configuration Protocol) server has suffered catastrophic failure. Which of the following will the DHCP (Dynamic Host Configuration Protocol) clients lose when their lease expires? A - Their MAC (Media Access Control) address B - Their IP (Internet Protocol) address C - Their IPX (Internetwork Packet Exchange) address D - Their physical address Answer: B Question: 61 A network administrator is in charge of a large corporate network containing a DNS (Domain Name Service) server, DHCP (Dynamic Host Configuration Protocol) server, and an internal web server. One particular subnet is experiencing trouble with Internet connectivity and is a wireless only subnet. The network administrator begins troubleshooting the wireless subnet and notices that there is a mixture of static and dynamic addresses, and a mixture of ad-hoc and infrastructure mode wireless settings. Some of the wireless clients can also access the corporate web sever, while others cannot. What must the administrator do to enable all wireless clients to access the Internet and all corporate servers? A - Enable infrastructure mode and statically set the default gateway to the router interface on the wireless subnet on all clients B - Enable ad-hoc mode and obtain the IP (Internet Protocol) address automatically on all clients C - Enable ad-hoc mode and statically set the default gateway to the router interface on the wireless subnet on all clients D - Enable infrastructure mode and obtain the IP (Internet Protocol) address automatically on all clients Answer: D Question: 62 A user cannot print to the company network printer. Which of the following commands can the user employ to verify connectivity to the printer? A - ipconfig B - ping C - route D - netstat Answer: B Question: 63 Around noon, 802.11b wireless users near the break room have intermittent, randomconnections. What is the problem? A - There are too many people located too close to the access point causing interference. B - An old microwave oven is being used in the break room which causes interference with the access point. C - Old fluorescent lights in the break room are interfering with the access point. D 900 MHz (Megahertz) cordless phones being used by employees on break are causing interference with the access point. Answer: B Question: 64 Given the following output, which utility was used? Default Server bigserver.datacenter.com Address: 4.12.18.1 A - ping B - nbtstat C - nslookup D - ipconfig Answer: C Question: 65 An ICS (Internet Connection Sharing) network has been setup as follows: Clients 1 and 2 cannot access the Internet. What is the problem? A - Windows 98 Second Edition does not support ICS (Internet Connection Sharing). B - A second NIC (Network Interface Card) needs to be installed on the ICS (Internet Connection Sharing) host. C - Windows 95B does not support ICS (Internet Connection Sharing). D - A second NIC (Network Interface Card) needs to be installed on Clients 1 and 2 and the ICS (Internet Connection Sharing) host.

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Answer: B Question: 66 Given the output: peanut (128.66.12.2) at 08:00:20:0b:4a:71 almond (128.66.12.1) at 08:00:20:0e:aa:40 pecan (128.66.12.3) at 00:00:93:e0:80:b1 Which of the following commands causes the results above? A - traceroute B - dig C - ping D - arp Answer: D Question: 67 A user authenticates to a server and mounts a network share for their department. The user needs to change a file on the share and is unsuccessful. Which one of the following is an effective troubleshooting step? A - Check the user network cable to make sure the end?wires are working B - Check the subnet mask on the computer and make sure it matches the server C - Provide the user with change rights D - Try mounting the share using a different networking protocol Answer: C Question: 68 A user has been having performance issues with their network. Which utility should the user use to view the route to an individual host? A - arp B - ftp C - ping D - tracert Answer: D Question: 69 A new intranet web server has been installed for a company. The clients access the intranet server by its DNS (Domain Name Service) name. To automatically change the clients to connect to the new server, an administrator modifies the DNS (Domain Name Service) name to reference the IP (Internet Protocol) of the new server. However, some clients are still connecting to the older server. What is causing the problem? A - Problematic workstations have cached the old IP (Internet Protocol) address of the server. B - Problematic workstations have cached the old DHCP (Dynamic Host Configuration Protocol) address of the server. C Problematic workstations have cached the old IPX (Internetwork Packet Exchange) address of the server. D - Problematic workstations have cached the old WINS (Windows Internet Name Service) address of the server. Answer: A Question: 70 One user is complaining about not reaching resources on a remote subnet, but can access resources on the local subnet by host name. Other users on the same subnet as the user can access the remote resources. What is causing this problem? A - The router B - The user subnet mask C - Incorrect DNS (Domain Name Service) configuration D - A bad cable Answer: B Question: 71 A network administrator of a 50 machine network is receiving complaints that some users are losing connectivity to network services. On inspection it is discovered that the IP (Internet Protocol) addresses for the subnet of 255.255.255.128 have been exhausted. Which of the following explains the problem? A - The subnet range needs to be changed to 255 .255.255.0 to accommodate more users. B - A DNS (Domain Name Service) A record has been deleted for the DHCP (Dynamic Host Configuration Protocol) server path and must be re-established. C The network router has lost its connection to the DHCP (Dynamic Host Configuration Protocol) server and must be rebooted. D - A rogue Windows DHCP (Dynamic Host

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Configuration Protocol) server is running a man-in- the-middle attack and has exhausted the IP (Internet Protocol) stack. Answer: D Question: 72 A network is experiencing a high volume of SMTP (Simple Mail Transfer Protocol) traffic. Which utility can a user run from the affected e-mail server to determine the source? A - netstat B - nbtstat C - nslookup/dig D - ping Answer: A Question: 73 Which one of the following protocols is used with the traceroute command? A - HTTP (Hypertext Transfer Protocol) B - SNMP (Simple Network Management Protocol) C - ICMP (Internet Control Message Protocol) D - XML (Extensible Markup Language) Answer: C Question: 74 A workstation presents an error message to a user. The message states that duplicate IP (Internet Protocol) has been detected on the network.? After implementing an action plan, what should be the NEXT step using the standard troubleshooting mode? A - Test the result B - Identify the affected area C - Document the solution and process D - Identify the results and effects of the solution Answer: A Question: 75 A break occurs in one segment of a bus network. How will this affect connectivity? A - The computers closest to the break will not connect to the network. B - The entire network will go down. C - Computers on the same side of the break will still communicate. D - The break will not affect connectivity. Answer: B Question: 76 Modal distortion is a problem with which type of media? A - Fiber optic cable B - Coaxial cable C - UTP (Unshielded Twisted Pair) D - STP (Shielded Twisted Pair) Answer: A Question: 77 Which IEEE (Institute of Electrical and Electronics Engineers) 802.x sublayer specifies standards for CSMA / CD (Carrier Sense Multiple Access / Collision Detection)? A - 802.1 B 802.2 C - 802.3 D - 802.4 Answer: C Question: 78 Which 1000 BASE Ethernet cabling standard supports copper cabling? A - 1000BASE-LX B 1000BASE-SX C 1000BASE-CX D 1000BASE-ZX Answer: C Question: 79 Which of the following cables are recommended for supporting a 1000 Mbps (Megabits per second)

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Ethernet transmission? A - Coaxial Cable, Category 5 UTP (Unshielded Twisted Pair), and Category 5e UTP (Unshielded Twisted Pair) B Category 3 UTP (Unshielded Twisted Pair), Category 5 UTP (Unshielded Twisted Pair), and Category 5e UTP (Unshielded Twisted Pair) C - Coaxial Cable and Category 5e UTP (Unshielded Twisted Pair) D - Category 5 UTP (Unshielded Twisted Pair) and Category 5e UTP (Unshielded Twisted Pair) Answer: D Question: 80 As new workstations and servers have been added to a company network performance has decreased due to broadcast storms. Which network device will help prevent the broadcast storms? A - Switch B - Repeater C - Firewall D - Router Answer: D Question: 81 Which networking topology connects computers via a central hub? A - BUS B Ring C - Star D - Mesh Answer: C Question: 82 Which one of the following devices connects a network segment to a public telephone network? A - CSU / DSU (Channel Service Unit / Data Service Unit) B - Gateway C - WAP (Wireless Access Point)D - Transceiver Answer: A Question: 83 Which connector connects a v.90 modem to a PSTN (Public Switched Telephone Network)? A - SC (Standard Connector) B - ST (Straight Tip) C - RJ-1 1 (Registered Jack) D - RJ-48 (Registered Jack) Answer: C Question: 84 Which one of the following devices passes packets based on information in the OSI (Open Systems Interconnect) network layer? A - Hub B - Switch C - Bridge D - Router Answer: D Question: 85 What are the four color-coded individual pairs or conductors for Category 6 UTP (Unshielded Twisted Pair) cable? A - Orange, yellow, green, and blue B - Blue, green, red, and brown C - Green, orange, blue, and brown D - Brown, orange, red, and green Answer: C Question: 86 An 802.11a/b/g access point is installed in a computer lab. An administrator has a client that is based on 802.11g technology. There are times when the client slows or stops working entirely. What is the cause of the problem? A - A FM (Frequency Modulation) radio is in use. B - A 900 MHz (Megahertz) cordless telephone is in use. C - A 2.4 GHz (Gigahertz) cordless telephone is in use. D - A 5 GHz (Gigahertz) cordless telephone is in use. Answer: C

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Question: 87 What can be done to increase the usable range of an 802.11b access point? A - Change the client to transmit using 802.11a B - Change from an internal to an external antenna C Configure the access point to transmit in the 50 Hz (Hertz) range D - Configure the client to use infrared transmitter Answer: B Question: 88 Which of the following choices describes an RJ-45 (Registered Jack) connector? A - A BNC (British Naval Connector / Bayonet Niell-Concelman) connector which uses fiber. B - A fourposition connector which uses UTP (Unshielded Twisted Pair). C - A six-position connector which uses UTP (Unshielded Twisted Pair). D - An eight-position connector which uses UTP (Unshielded Twisted Pair). Answer: D Question: 89 Which IEEE (Institute of Electrical and Electronics Engineers) 802.x standard defines the operation of the LLC (Logical Link Control) sublayer of the OSI (Open Systems Interconnect) model Data Link layer? A-1B-2 C-3D-4 Answer: B Question: 90 Which one of the following IEEE (Institute of Electrical and Electronics Engineers) standards has the shortest maximum distance? A - 10BASE-T B - 10 GBASE-SR C - 1000BASE-T D - 1000BASE-CX Answer: D Question: 91 How many conductor pairs are required for a 100BASE-TX Ethernet link with a Category 5 cable? A - 1 pair B - 2 pairs C - 3 pairs D - 4 pairs Answer: B Question: 92 Which one of the following connectors would a user need for a built-in laptop modem? A - RJ-45 (Registered Jack) B - DB-9 C - RJ-11 (Registered Jack) D - BNC (British Naval Connector / Bayonet Niell-Concelman) Answer: C Question: 93 FDDI (Fiber Distributed Data Interface) operates at what speed? A - 1 Mbps (Megabits per second) B - 10 Mbps (Megabits per second) C - 100 Mbps (Megabits per second) D - 1000 Mbps (Megabits per second) Answer: C Question: 94 Which network topology is the LEAST fault-tolerant and has the LEAST redundancy? A - Ring B Mesh C - Star D - Bus Answer: D Question: 95 Which network devices operate at the OSI (Open Systems Interconnect) Layer 2?

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A - Hub and repeater B - Bridge and switch C - Router and gateway D - Transceiver and modem Answer: B Question: 96 Which one of the following connectors is used in 1000BASE-T networking? A - RJ- 11 (Registered Jack) B - ST (Straight Tip) C - SC (Standard Connector) D - RJ-45 (Registered Jack) Answer: D Question: 97 Which one of the following antenna types is omnidirectional? A - Vertical B - Dipole C - Yagi D - Parabolic Answer: A Question: 98 Which one of the following IEEE (Institute of Electrical and Electronics Engineers) standards represents token ring? A - 802.2 B 802.3 C - 802.5 D - 802.11 Answer: C Question: 99 For security reasons, which device can limit traffic on a network and allow access only to specific TCP / IP (Transmission Control Protocol / Internet Protocol) port numbers? A - Gateway B Firewall C - Bridge D - Modem Answer: B Question: 800 10BASE-T can operate at a maximum of: A - 10 Kbps (Kilobits per second). B - 10Mbps (Megabits per second). C - 100 Mbps (Megabits per second). D - 10 Gbps (Gigabits per second). Answer: B

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