Questions and Answers in Visual Basic .NET

Generating QR Code ISO/IEC18004 in Visual Basic .NET Questions and Answers

Questions and Answers
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Answer B is correct. The next logical step is to try to repair the connection. Answer A is not cor rect because a workgroup can have more than 10 computers; Answer C is incorrect because that is a process to try if the repair step fails. Answer D is incorrect because APIPA might dis rupt the rest of the network.
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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:
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Ethernet adapter Local Area Connection-specific Description . . . . Physical Address. . DHCP Enabled. . . . IP Address. . . . . Subnet Mask . . . . Default Gateway . . DNS Servers . . . . Connection: DNS Suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Intel(R) PRO/1000 CT 00-05-E8-45-B4-2E Yes 169.254.011.202 255.255.0.0
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What do these results tell you (Choose all that apply.) A. The computer is configured to connect to a DHCP server. B. The computer is not configured to connect to a DHCP server. C. The computer is successfully connecting to a DHCP server. D. The computer is not successfully connecting to a DHCP server.
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Answers 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.
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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. 2. You need to find out the IP address, subnet mask, and default gateway of the user s computer. A. ipconfig B. pathping IPAddress
C. ping 127.0.0.1. 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 infor mation about packet loss at every router along the way. 4. You need to list the file shares on a remote computer running Windows XP. D. net view \\ComputerName
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Common Connectivity Problems
1-C. Pinging the loopback address is useful in determining whether TCP/IP is installed correctly on a computer. 2-A. ipconfig offers the IP address, default gateway, and subnet mask. 3-B. pathping offers this information. 4-D. Net view lists shares on local and remote computers.
2. After the command ipconfig /all is used, the following results are given: A. IP Address 192.168.0.5 B. Subnet Mask .255.255.255.255 C. Default Gateway 192.168.0.7 Which of these is most likely configured incorrectly
Answer 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
The most likely problem is that the computer with the problem is not configured to obtain DNS server information automatically.
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 A. APIPA is in use. B. The network bridge is corrupt. C. The configured DNS server is not available. D. The Ethernet cable on Computer1 is disconnected from the NIC or the hub.
Answer D is correct. 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 con nection to the workgroup hub. Answer A is incorrect because APIPA addresses would be used
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