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Net+ Domain 4

You are troubleshooting a network connectivity issue on a Unix system. You are able to connect to remote systems by using their IP address, but unable to connect using the hostname. You check the TCP/IP configuration, and note that
a DNS server IP address is configured.

You decide to run some manual resolution queries to ensure that the communication between the Unix system and the DNS server are working correctly. Which utilities can you use to do this? (Choose two .)

A. traceroute
B. tracert
C. dig
D. nslookup

C. dig
D. nslookup
You are troubleshooting a connectivity problem on a Linux server. You are able to connect to another system on the local network, but are not able to connect to a server on a remote network.

You suspect that the default gateway information for the system may be configured incorrectly. Which of the following commands would you use to view the default gateway information on the Linux server?

A. winipcfg
B. ipconfig
C. dig
D. ifconfig

D. ifconfig
Which of the following commands would display the output shown here?

Route Table

Interface List
0x1 . . . . . . . . . . . . . MS TCP Loopback interface
0x2 . . . . . . . . . . . . 3Com 3C90x Ethernet Adapter

Active Routes:
Network Dest…. Netmask………….. Gateway…………. Interface……….. Metric
0.0.0.0…………… 0.0.0.0…………….. 192.168.1.1…….. 192.168.1.111….. 1
127.0.0.0………… 255.0.0.0…………. 127.0.0.1………… 127.0.0.1……….. 1
192.168.1.0……… 255.255.255.0….. 192.168.1.111…… 192.168.1.111…..1
192.168.1.111……. 255.255.255.255.. 127.0.0.1……….. 127.0.0.1…………1
192.168.1.25…….. 255.255.255.255.. 192.168.1.111….. 192.168.1.111…..1
224.0.0.0………… 244.0.0.0…………. 192.168.1.111….. 192.168.1.111…..1
255.255.255.255.. 255.255.255.255.. 192.168.1.111…. 192.168.1.111…..1
Default Gateway: 192.168.1.1

Persistant Routes:
None

A. mtr
B. ifconfig
C. host
D. route print

D. route print
You are in the habit of regularly monitoring performance statistics for your devices. You find that this month a specific server has averaged a higher number of active connections than last month.

Which type of document should you update to reflect the change?

A. Configuration documentation
B. Network diagram
C. Baseline
D. Wiring schematic
E. Change log

C. Baseline
You’ve connected a cable certifier to an RJ-45 wall jack and the output shown below is displayed on the device. What does this output indicate? (Select two.)

A. There are multiple open pins on this cable.
B. The cable is functioning correctly.
C. This is a cross-over cable.
D. There are multiple short on this cable.
E. This is a straight-through cable.

B. The cable is functioning correctly.
C. This is a cross-over cable.
You have a Web site that customers use to view product information and place orders. You would like to identify the maximum number of simultaneous sessions that this server can maintain before performance is negatively impacted.

Which tool should you use?

A. Baseline
B. System log
C. Load tester
D. Throughput tester
E. Packet sniffer

C. Load tester
Mary calls to tell you that she can’t connect to an intranet server called WebSrvl. From her computer, you ping the server’s IP address. The ping test is successful. Which tool would you use on her workstation next to troubleshoot the problem?

A. tracert
B. nslookup
C. nbtstat
D. netstat
E. arp

B. nslookup
You manage a network that uses 1000BaseT Ethernet. You find that one device communicates on the network at only 100 Mbps.

Which tool should you use to test the drop cable and the connection to the network?

A. Certifier
B. TDR
C. Toner probe
D. Cable tester
E. Multimeter

A. Certifier
Your company leases a very fast Internet connection and pays for it based on usage. You have been asked by the company president to reduce Internet line lease costs. You want to reduce the amount of web pages that are downloaded over the leased connection, without decreasing performance.

What is the best way to do this?

A. Install a packet-filtering firewall
B. Install a proxy server
C. Install modems in employees’ computers
D. Implement NAT

B. Install a proxy server
You are troubleshooting a workstation connection to the network. During your troubleshooting, you replace the drop cable connecting the computer to the network.

Which type of document should you update?

A. Change documentation
B. Network diagram
C. Wiring schematic
D. Configuration documentation

A. Change documentation
You manage a server that runs your company Web site. The Web server has reached its capacity, and the number of client requests is greater than the server can handle.

You would like to find a solution so that static Web content can be offloaded to a different server, while the Web server continues to process dynamic content.

Which solution should you implement?

A. Traffic shaper
B. Ethernet bonding
C. Proxy server
D. QoS

C. Proxy server
You are troubleshooting a connectivity problem in which one client system is unable to connect to a server. Both the server and client system are connected to the same Ethernet network switch. No other users have complained of a problem, and you suspect that faulty network cabling might be to blame.

Which of the following troubleshooting steps are you most likely to perform first?

A. Use a media tester to test the cable between the network switch and the server system.
B. Use a wire crimper to ensure that the cable ends are still fully attached to the cable between both the computer and the network switch, and between the network switch and the server system.
C. Use a tone generator to test the network cables between the computer and the network switch, and between the network switch and the server system.
D. Use a media tester to test the cable between the computer system and the network switch.
E. Use a punchdown tool to test the network cable between the computer system and the network switch.

D. Use a media tester to test the cable between the computer system and the network switch.
While troubleshooting a problem on a Linux system, you run a utility that generates the following output :

5 s3232.gw.Seat.someisp.net (63.201.72.9) 38 .433 ms 38.713 ms 39.085 ms
6 st11122.gar1.Seat.someisp.net (211.242.9.121) 38.620 ms 38.593 ms 38.050 ms
7 oc48-6yy.Seat.someisp.net (14.248.154.129) 57.440 ms 56.678 ms 57.675 ms
8 t223hgh-ytry.swa.someisp.net (142.133.89.232) 103.041 ms 57.181 ms 56.619 ms
9 t8343mmd.cgsse1.someisp.net (162.191.10261) 91.977 ms 93.971 ms 93.767 ms
10 twirem2.cgssfdl.ip.someisp.net (145.97.133.23) 92.463 ms 92 .337 ms 93.523 ms
11 twerrm1.nfffsiny.ip.someisp.net (117.116.141.38) 106.000 ms 106.007 ms 105.283 ms
12 gbed22repp0.n5ddsdsy.ip.someisp.net (123.194.132.8) 103.198 ms 105.447 ms 104.263 ms

Which of the following utilities were you using?

A. ping
B. dig
C. traceroute
D. tracert

C. traceroute
Which of the following solutions are most likely implemented with VoiP to ensure timely delivery of voice data? (Select two.)

A. Caching engine
B. Load balancing
C. Traffic shaper
D. Spanning tree
E. QoS

C. Traffic shaper
E. QoS
You are working with 25 pair wires and 66 blocks. You have pushed the wires onto the 66 block, but now need to cut off the excess end of each wire.

Which tool should you use?

A. Punchdown tool
B. Cable stripper
C. Butt set
D. Snips

A. Punchdown tool
Which of the following tests can be performed by a TDR? (Select two.)

A. Identify the location of a fault on a cable.
B. Identify split pairs and miswires.
C. Measure the length of a cable.
D. Measure near end and far end crosstalk.
E. Verify that the cable meets Cat5e, Cat6, or Cat6e standards.

A. Identify the location of a fault on a cable.
C. Measure the length of a cable.
You work in an office that uses NetWare servers and Windows NT 4.0 servers. The network uses both the TCP/IP and IPX/SPX protocols.

You are sitting at a workstation that uses Windows 95 OSR2. An application you are using is unable to contact a Windows NT server named FileSrv2.

Which command can you use to determine whether your computer can still contact the server?

A. tracert
B. ping
C. nwlookup
D. arp

A. tracert
Examine the following output :

4 22 ms 21 ms 22 ms sttlwa01gr02.bb.ispxy.com [154.11.10.62]
5 39 ms 39 ms 65 ms plalca01gr00.bb.ispxy.com [154.11.12.11]
6 39 ms 39 ms 39 ms Rwest.plalca01gr00.bb.ispxy.com [154.11.3.14]
7 40 ms 39 ms 46 ms sv1-core-03.inet.ispxy.net [205.171.205.29]
8 75 ms 117 ms 63 ms dia-core-01.inet.ispxy.net [205.171.142.1]

Which of these commands produced this output?

A. tracert
B. nslookup
C. ping
D. pingroute

A. tracert
You are troubleshooting a workstation connection to the network. During your troubleshooting, you move the cable in the wiring closet to a different port on the patch panel.

Which type of document should you update?

A. Baseline
B. Logical network diagram
C. Wiring schematic
D. Procedure

C. Wiring schematic
Which TCP/IP utility gives you the following output?

Interface: 192.168.1.111 on Interface 0x2
Internet Address… Physical Address ……..Type
192.168.1.102…….. 00-60-08-bd-62-5a…. dynamic
192.168.1.168…….. 00-06-5b-1c-48-76….. dynamic

A. netstat -a
B. nbtstat -c
C. ipconfig
D. arp -a

D. arp -a
You have a Web server on your network that hosts the public Web site for your company. You want to make sure that a failure of the NIC in the server does not prevent the Web site from being accessible on the Internet.

Which solution should you implement?

A. Traffic shaping
B. Spanning tree
C. Ethernet bonding
D. QoS

C. Ethernet bonding
You manage a server that runs your company Web site. The Web server has reached its capacity, and the number of client requests is greater than the server can handle.

You would like to find a solution so that a second server can respond to requests for Web site content.

Which solution should you implement?

A. Load balancing
B. Traffic shaper
C. Ethernet bonding
D. QoS

A. Load balancing
While working on a Linux server, you are unable to connect to Windows Server 2003 system across the Internet. You are able to ping the default gateway on your own network, so you suspect that the problem lies outside of the local network.

Which utility would you use to track the route a packet takes as it crosses the network?

A. dig
B. traceroute
C. ipconfig
D. nslookup
E. tracert
F. ifconfig

B. traceroute
You need to find out what kind of laws might apply to the design and operation of your network. Which type of document would you consult?

A. Baseline
B. Policy
C. Procedure
D. Regulation

D. Regulation
You’ve connected a cable certifier to an RJ-45 wall jack and the output shown below is displayed on the device. What does this output indicate?

1 xxxxxxxxxxxxxxxxxxxxxxx 1
2 xxxxxxxxxxxxxxxxxxxxxxx 2
3 ——————————- 3
4 ——————————- 4
5 ——————————- 5
6 ——————————- 6
7 ——————————- 7
8 ——————————- 8

A. Pins 1 and 2 are crossed-over.
B. Pins 1 and 2 are open.
C. The cable is functioning correctly.
D. Pins 1 and 2 are shorted.

D. Pins 1 and 2 are shorted.
The phone line to one office is not working. You have identified the location of the phone line in a 66 block in the wiring closet.

Which tool would you use to connect to the phone line at the punchdown block to see if you can make and receive calls?

A. Toner probe
B. Butt set
C. Punchdown tool
D. TDR

B. Butt set
You need to perform a reverse lookup of the 10.0.0.1 IP address. Which command can you use to accomplish this? (Select two. Each response is a complete solution.)

A. nbtstat -a 10.0.0.3
B. ipconfig /dnslookup 10.0.0.3
C. dig -x 10.0.0.3
D. nslookup 10.0.0.3
E. arp 10.0.0.3

C. dig -x 10.0.0.3
D. nslookup 10.0.0.3
You want to make sure that the correct ports on a firewall have been opened or closed. Which document should you check?

A. Wiring schematic
B. Baseline
C. Policy
D. Configuration documentation

D. Configuration documentation
You have installed a new application on a network device. During testing, it appears as if the software is causing other services running on the device to stop responding.

Which tool should you consult to identify the problem?

A. Load tester
B. Application log
C. Throughput tester
D. Packet sniffer

B. Application log
You are working with an existing fiber optic installation in your building. You want to know how long each length of cable is that runs through walls.

Which tool should you use?

A. OTDR
B. Smart jack
C. Multimeter
D. Toner probe

A. OTDR
Which of the following documents would likely identify that drop cables on your network use the T568A standard?

A. Change log
B. Wiring schematic
C. Baseline
D. Network diagram
E. Policy

B. Wiring schematic
You have been asked to document the wiring in your building. You would like to identify the length of each Cat5 cable to verify that it meets Ethernet standards. You need to identify the length of the cables, but most cables run through walls and ceilings, making them difficult to trace.

Which tool should you use?

A. Smart jack
B. Butt set
C. Toner probe
D. TDR
E. OTDR

D. TDR
You are the network administrator for a growing business. When you were initially hired, the organization was small and only a single switch and router were required to support your users. During this time, you monitored log messages from your router and switch directly from each device’s console.

However, the organization has grown considerably in recent months. You now must manage 8 individual switches and three routers. It’s becoming more and more difficult to monitor these devices and stay on top of issues in a timely manner.

What should you do?

A. Hire additional resources to help monitor and manage your network infrastructure.
B. Consolidate network resources down to one or two switches.
C. Use a remote access utility such as SSH to access router and switch consoles remotely.
D. Use syslog to implement centralized logging.

D. Use syslog to implement centralized logging.
You manage a server that runs your company Web site. The Web site includes streaming video that shows features of some of your products.

The link connecting your server to the Internet charges based on bandwidth use. When the bandwidth spikes, so does your bill. You would like to implement a solution to prevent the amount of traffic sent over the WAN link from exceeding a specific level.

Which solution should you implement?

A. QoS
B. Caching engine
C. Traffic shaper
D. Load balancing

C. Traffic shaper
Your network conducts training sessions for high-profile clients. As part of the training, clients connect to get a video feed of the instructor and other class activities. You want to make sure that video traffic related to the training is not delayed on the network.

Which solution should you implement?

A. Load balancing
B. Caching engine
C. Ethernet bonding
D. QoS

D. QoS
Which of the following information are you likely to find in a procedure document?

A. Details on how to test and deploy patches.
B. An inventory of the hardware components in a specific device.
C. A record of the repairs made to a specific device.
D. The relationship of routers to other routers on the network.

A. Details on how to test and deploy patches.
Which TCP/IP utility gives you the following output?

2 14 ms <10 ms 14 ms Loopback0.GILSLTLflLTER.NET [137.39.2.123] 3 14 ms <10 ms 13 m s 122.at-6-0-0.XR1.SLT4.flLTER.NET [152.63.91.86] 4 <10 ms 14 ms <10 m s 0.so-0-1-0.TL1.SLT4.flLTER.NET [152.63.1.210] 5 41 ms 41 ms 41 ms 0.so-7-0-0.TL1.POR3.flLTER.NET [152.63.32.41] 6 42 ms 41 ms 41 m s 0.so-6-0-0.XL1 .SEfl1 .flLTER .NET [152.63 .38 .82] 7 41 ms 41 ms 42 m s POS6 -0.G111.SEfl1.flLTER.NET [152.63.107.17] A. tracert B. ipconfig C. ifconfig D. nslookup

A. tracert
You are making Ethernet drop cables using Cat5e cable and RJ-45 connectors. You need to remove the plastic coating over the cable to expose the individual wires.

Which tool should you use?

A. Punchdown tool
B. Snips
C. Butt set
D. Cable stripper

D. Cable stripper
Consider the following output from a dig command run on a Linux system.

; <<>> DiG 8 .2 <<>> westsimlll.com
;;res options :init recurs defnam dnsrch
;;got answer :
;;->>HEADER<< -opcode :QUERY , status : NOERROR , id :4 ;;flags : qr rd ra ; QUERY :l , ANSWER :l , AUTHORITY :2, ADDITIONAL :0 ;;QUERY SECTION : ;; westsimlll.com , type= A , class= IN ;;ANSWER SECTION : westsimlll .com . 7h33m IN A 76 .141 .43 .129 ;;AUTHORITY SECTION : westsimlll .com . 7h33m INNS dnsl .deriatctlll .com. westsimlll.com. 7h33m INNS dns2.de riatct222.com . ;;Total query time : 78 msec ;;FROM: localhost .localdomain to SERVER :default -- 202 .64 .49 .150 ;;WHEN: Tue Feb 16 23 :21 :24 2005 ;;MSG SIZE sent : 30 rcvd :l03 What is the IP address of the DNS server that performed this name resolution? A. 202.64.49.150 B. 76.141.43.129 C. 192.168.1.100 D. 16.23.21.24

A. 202.64.49.150
You want to measure the voltage, amps, and ohms of various devices.

Which tool should you use?

A. Butt set
B. Multimeter
C. Toner probe
D. voltage event recorder
E. Certifier

B. Multimeter
Which type of documentation would you consult to find the location of RJ-45 wall jacks and their endpoints in the intermediate distribution closet?

A. Baseline
B. Wiring schematic
C. Policy
D. Procedure

B. Wiring schematic
You have been using SNMP on your network for monitoring and management. You are concerned about the security of this configuration.

What should you do?

A. Use SSH instead of SNMP.
B. Implement a RADIUS solution.
C. Combine SNMP with SSL.
D. Implement version 3 of SNMP.

D. Implement version 3 of SNMP.
Which TCP/IP utility gives you the following output?

Local Area Connection:
Node IpAddress: [192.168.1.111] Scope Id: []

NetBIOS Remote Cache Name Table

Name —————Type ———– Host Address ——-Life [sec]
NTINE.ES …<54> UNIQUE . . . . .192.168.1.23 . . . . . . .395
NTINE . . . . .<20> UNIQUE. . . . . 192.168.1.23 . . . . . . .45
AUDIO . . . . .<00> UNIQUE. . . . .192.168.1.168. . . . . . 585

A. netstat -a
B. nbtstat -c
C. arp -a
D. netstat -r

B. nbtstat -c
You are concerned about the amount of traffic that passed through a router on your network. You want to see how the amount of traffic has changed over time.

Which document would help in identifying past average network traffic?

A. Baseline
B. History log
C. Event log
D. Network diagram

A. Baseline
Examine the following output :

Server : helicuplar.xct.takro.net
Address : 209.53.4.130
Name : westsim.com
Address : 64.78.193.84

Which of the following utilities produced this output?

A. nslookup
B. tracert
C. ipconfig
D. netstat

A. nslookup
Which of the following information are you likely to find in a policy document?

A. Average performance statistics for a router.
B. The IP address assigned to a router interface.
C. A requirement for using encrypted communications for Web transactions.
D. Steps for completing and validating nightly backups.

C. A requirement for using encrypted communications for Web transactions.
Which of the following allows you to save frequently-accessed Web sites on your local network for later retrieval?

A. NAT
B. VLAN
C. Proxy
D. VPN
E. Fault tolerance

C. Proxy
What is the purpose of using Ethernet bonding? (Select two.)

A. Provides increased bus speeds
B. Enables Dual Remote Access (ORA) over a WAN link
C. Provides a failover solution for network adapters
D. Increases read and write operations between the system bus and network adapters
E. Increases network performance

C. Provides a failover solution for network adapters
E. Increases network performance
Examine the following output.

Reply from 64.78.193.84 : bytes=32 time=86ms TTL=115
Reply from 64.78.193.84 : bytes=32 time=43ms TTL=115
Reply from 64.78.193.84 : bytes=32 time=44ms TTL=115
Reply from 64.78.193.84 : bytes=32 time=47ms TTL=115
Reply from 64.78.193.84 : bytes=32 time=44ms TTL=115
Reply from 64.78.193.84 : bytes=32 time=44ms TTL=115
Reply from 64.78.193.84 : bytes=32 time=73ms TTL=115
Reply from 64.78.193.84 : bytes=32 time=46ms TTL=115

Which of the following utilities produced this output?

A. nslookup
B. ifconfig
C. ping
D. tracert

C. ping
Which of the following utilities would you use to view the routing table?

A. tracert
B. route
C. mtr
D. dig
E. traceroute

B. route
A new law was recently passed that states that all businesses must keep a history of all e-mails sent between members of the board of directors. You need to ensure that your organization complies with this law.

Which document type would you update first in response to this new law?

A. Configuration documentation
B. Policy
C. Change documentation
D. Procedure

B. Policy
You are the network administrator of a branch office of your company. The branch office network is part of a WAN that covers most of the United States . The office has two Windows 2000 servers, two UNIX servers, one Windows NT server, 90 Windows 98 clients, 40 Windows 2000 Professional clients, and five Macintosh clients.

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?

A. nbtstat
B. nslookup
C. tracert
D. netstat

C. tracert
You have just been hired as a network administrator. A user has just changed offices and needs you to activate the network and telephone connections in his office. However, the wiring at the punch down block is labeled poorly and you are unable to tell which wires go to the user’s office.

What should you do?

A. Use a media tester to locate the correct wiring
B. Use a punch down tool to locate the correct wiring
C. Use a tone generator to locate the correct wiring
D. Install new wiring from the punch down block to the user’s office

C. Use a tone generator to locate the correct wiring
You have a group of salesmen who would like to access your private network through the Internet while they are traveling. You want to control access to the private network through a single server.

Which solution should you implement?

A. IDS
B. IPS
C. RADIUS
D. VPN concentrator
E. DMZ

D. VPN concentrator
You decide to use a packet sniffer to identify the type of traffic sent to a router. You run the packet sniffing software on a device which is connected to a hub with three other computers. The hub is connected to the same switch that is connected to the router.

When you run the software, you only see frames addressed to the four workstations but not to the router.

Which feature should you configure?

A. Bonding
B. Mirroring
C. Promiscuous mode
D. Spanning tree

B. Mirroring
You are preparing to attach wires in a 110 block. You want to connect the wires and trim off the excess at the same time.

Which of the following should you do? (Select two.)

A. Point the cut side of the tool towards the wire end.
B. Use a butt set with a jack.
C. Point the cut side of the tool towards the connected end of the wire.
D. Use a butt set with clips.
E. Use a punchdown tool with a straight blade.
F. Use a punchdown tool with a notched blade.

A. Point the cut side of the tool towards the wire end.
F. Use a punchdown tool with a notched blade.
Which command displays network activity statistics for TCP, UDP, and IP?

A. ping-s
B. telnet
C. nslookup
D. netstat -s
E. nbtstat -s

D. netstat -s

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