Questions and Answers

Lesson 1 Review

Page 8-8

1.	What is the name of the Windows utility that lists the current state of the hardware installed on the system? msconfig System Information Device Manager Computer Management
2.	You are troubleshooting a networking problem for a user. The user was having no problems connecting to her network when she left the office yesterday afternoon. This morning, when she came to work, she could not connect to the network. You know that other users on the network are not having the same problems. What is the first thing you should check?

Answers

1.

C. Device Manager lists the hardware installed on a system and each device’s current operational state, and it offers tools for working with and troubleshooting the device. A is incorrect because msconfig is used to configure the Windows startup environment. B is incorrect because although System Information does show much of the hardware installed on a system, it gives no information about its current state. D is incorrect because Computer Management is an administrative collection of tools for working with various aspects of Windows XP.

2.

You should make sure that the network cable is seated properly in the jack on the back of the user’s computer and in the jack on the wall. It is likely that something happened overnight, such as when the office was cleaned, that caused the connection to loosen.

Lesson 2 Review

Page 8-29

1.	You are troubleshooting a network connectivity problem for a workgroup containing 12 computers. One of the computers cannot access network resources. After verifying that the physical connections are good, that the NIC light is on and the NIC produces no errors in Device Manager, and that the computer name and workgroup name are correct in System Properties, you still cannot solve the problem. What should you try next? Remove two of the computers from the workgroup; workgroups can have only 10 or fewer computers connected. Open Network Connections, and try to repair the connection. Re-create the network connection. Configure the workgroup to use APIPA.
2.	A user complains to you that he is not able to connect to any network resources after installing a new networking card. You open the Command Prompt window on the user’s computer and type ipconfig /all. You get the following results: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix Description . . . . . . . . . . . : Intel(R) PRO/1000 CT Physical Address. . . . . . . . . : 00-05-E8-45-B42E DHCP Enabled. . . . . . . . . . . : Yes IP Address. . . . . . . . . . . . : 169.254.011.202 Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : What do these results tell you? (Choose all that apply.) The computer is configured to connect to a DHCP server. The computer is not configured to connect to a DHCP server. The computer is successfully connecting to a DHCP server. The computer is not successfully connecting to a DHCP server.

Answers

1.	B is correct. The next logical step is to try to repair the connection. A is not correct because a workgroup can have more than 10 computers; C is incorrect because that is a process to try if the repair step fails; and D is incorrect because APIPA might disrupt the rest of the network.
2.	A and D are correct. The computer is configured to connect to a DHCP server. However, it is not getting an IP address from a DHCP server successfully. You can tell this because the IP address is in the range assigned by APIPA.

Lesson 3 Review

Page 8-38

1.

Match the troubleshooting scenarios on the left with the appropriate command on the right.

1. You need to check to see whether TCP/IP is installed correctly on a user’s computer.	A. ipconfig
2. You need to find out the IP address, subnet mask, and default gateway of the user’s computer.	B. pathping IPAddress
3. You are unable to communicate with a remote computer. You suspect that data loss is occurring at a remote router, but you are not sure which one. You want to test the route that the packets take from your computer to the remote one, and you want to view information about packet loss at every router along the way.	C. ping 127.0.0.1.
4. You need to list the file shares on a remote computer running Windows XP.	D. net view \\ComputerName

2.

After the command ipconfig /all is used, the following results are given:

1. IP Address………192.168.0.5

2. Subnet Mask…….255.255.255.255

3. Default Gateway…………192.168.0.7

4. Which of these is most likely configured incorrectly?

Answers

1.	1 is C. Pinging the loopback address is useful in determining whether TCP/IP is installed correctly on a computer. 2 is A. ipconfig offers the IP address, default gateway, and subnet mask. 3 is B. pathping offers this information. 4 is D. net view lists shares on local and remote computers.
2.	B is correct because the IP address is a Class C address (as is the gateway); the subnet mask should be 255.255.255.0.

Lesson 4 Review

Page 8-44

1.	You are troubleshooting a connectivity problem on a small home office workgroup that includes four computers connected through an Ethernet hub. Each computer is connected directly to the Internet, and all computers should retrieve all TCP/IP addressing information automatically. One of the users complains that she can access other computers on the network but cannot access any websites. The other three computers are working just fine. You verify that the computer in question does not reach any websites when you type in the URL. However, you can get to websites when you type the actual IP address. You use the ipconfig /all command on each computer and determine that the computer that cannot access websites has different DNS servers listed than the other three computers. What is the likely problem?
2.	You ping the other computers by IP address. The user at Computer1 cannot access any workgroup resources but is able to access the shared printer connected directly to her computer; the other three computers can access all workgroup resources except for resources on Computer1, including the shared printer. What is most likely the problem? APIPA is in use. The network bridge is corrupt. The configured DNS server is not available. The Ethernet cable on Computer1 is disconnected from the NIC or the hub.

Answers

1.

The most likely problem is that the computer with the problem is not configured to obtain DNS server information automatically.

2.

D is the correct answer. Because Computer1 is functional, and because all of the other computers in the workgroup are communicating, the problem is likely with the computer itself and its connection to the workgroup hub. A is not the correct answer because APIPA addresses would be used by each computer on the network, and thus all would be able to communicate. B is incorrect because there is only one network segment, and no bridge is necessary. C is incorrect because no DNS server is mentioned in the scenario, and DNS servers are configured for domains, not workgroups.

Lesson 5 Review

Page 8-48

1.

A user has set up Internet Connection Sharing on a host computer that runs Windows XP but is experiencing problems with his clients being able to connect to both the Internet and other computers on the network. Which of the following items could be the cause of the problems? (Select all that apply.)

1. There is a DHCP server on the network.

2. There is a DNS server on the network.

3. There are computers on the network with static IP addresses.

4. There is a Windows 2000 server on the network.

Answers

1.

A, B, and C are correct. DHCP and DNS servers as well as computers with static IP addresses will all cause problems for ICS. D is not a correct answer because Windows 2000 servers can be members of workgroups and work with ICS as long as they are not also domain controllers that provide DHCP or DNS services.

Case Scenario Exercises: Scenario 8.1

Page 8-49

1.

An owner of a small business purchased Windows Server 2003, installed it on his best computer, and configured it to be the domain controller on his network. He has eight other computers in his office, and he was able to successfully connect all of them to the domain except for two. Of the following choices, which would cause the two computers not to be installed?

1. The two computers are running Microsoft Windows 98.

2. The two computers are running Microsoft Windows Me.

3. The two computers are running Windows XP Home Edition.

4. The two computers are running Windows 2000 Server.

Answers

1.

C is correct. Computers running Windows XP Home Edition cannot join a domain. The other choices are incorrect because computers running Windows 98, Windows Me, and Windows 2000 Server can all participate in a domain.

Case Scenario Exercises: Scenario 8.2

Page 8-49

1.

A user of a small office workgroup has returned from a weeklong vacation. She boots her computer, and everything seems to be functional. As the day progresses, she accesses data from a workgroup file server, and she prints to a network printer. Later she tries to access another workgroup resource, a printer that is attached to a user’s computer in the office upstairs, but she receives an error that the printer cannot be found. She reports that the Ethernet cable is connected and the NIC has a green light, and that she can access other resources on the network. What is the first thing you should do?

1. Check the status of the network router.

2. Check the status of the computer upstairs.

3. Ping the computer’s loopback address.

4. Use the tracert command at a command prompt to view the route and possible packet losses.

Answers

1.

B is correct. Because the user can access other network resources, the problem is probably with the resource itself. The other answers are not likely correct because the user is able to access other network resources.

Troubleshooting Lab

Page 8-50

1.

You are a technical support agent at Contoso.com. A user complains that she cannot access websites on the Internet. In investigating the problem, you ask her several questions:

• Are there any sites on the Internet that you can access? No.

• Have you ever been able to access websites on this computer before? Yes.

• Was the computer on the same network, or on a different network when you were able to access websites before? It was at home.

• Have you made any changes recently to Microsoft Internet Explorer or your computer? No.

• What type of Internet connection do you have? Cable modem.

Using everything you have learned in this chapter, what would be your first steps in troubleshooting this problem?

Answers

1.

Because this is a home connection on a cable modem, you can be pretty sure that the computer should be set to obtain an IP address automatically from the ISP. Your first step, therefore, should be to open the command prompt and type ipconfig /all. Look for any problems with the IP addressing information. If you see an IP address in the 169.254 range, for example, you know that the computer is set to obtain an IP address automatically but cannot reach the DHCP server. This probably points to a loose cable or a malfunctioning network adapter or cable modem. If you rule out these problems, there is likely a problem at the ISP.