Answers

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Chapter 7: Lesson Review Answers

Lesson 1

1. Correct Answer: C

A. Incorrect: The ping command is used to test connectivity. It does not display the

IP configuration of a computer’s interfaces.

B. Incorrect: The tracert command is used to test connectivity to a device on a remote

network and return information about the intermediate hops. It does not display

the IP configuration of a computer’s interfaces.

C. Correct: The ipconfig command displays the IP configuration of a computer’s

interfaces.

D. Incorrect: You can enter cmd in the Run box to access the Command Prompt con-

sole. It is not a command-line command, and it does not display the IP configura-

tion of a computer’s interfaces.

2. Correct Answers: B, C, and D

A. Incorrect: This accesses the Local Area Network (LAN Settings) dialog box. You

can select automatic configuration, specify an automatic configuration script, or

specify a proxy server. The dialog box does not display connection properties.

B. Correct: This procedure accesses the Local Area Connections Properties dialog

box.

C. Correct: This is an alternative method of accessing the Local Area Connections

Properties dialog box.

D. Correct: Although this procedure requires one more step than that described in

Answer C, it accesses the Local Area Connections Properties dialog box.

3. Correct Answers: A and D

A. Correct: The 801.11a specification can achieve a bandwidth of up to 54 Mbps.

B. Incorrect: The 802.11b specification can achieve a bandwidth of up to 11 Mbps.

C. Incorrect: 802.11d is a wireless network communications specification for use in

countries where systems using other standards in the 802.11 family are not

allowed to operate. The 802.11d specification is similar in most respects to

802.11b and supports bandwidths of up to 11 Mbps.

D. Correct: The 801.11g specification can achieve a bandwidth of up to 54 Mbps

under optimal conditions.

4. Correct Answer: A

A. Correct: 802.11a uses the 5 GHz frequency. Although some mobile phones use

this frequency, most domestic appliances use the 2.4 GHz 802.11a networks and

are therefore the least affected by interference from other devices.