最新的CWNA Certification認證 CWNA-106考試題庫

問題1

When using an RF splitter to connect one transceiver to sector antennas loss is incurred.
What is this loss called?

A. Conversion loss

B. Through loss

C. Intentional loss

D. Active loss

正確答案: B

問題2

What statements accurately describe the RF cables and connectors that are used in an
802.11 WLAN system? (Choose 3)

A. Large diameter RF cables cause greater loss than smalldiameter cables.

B. Every RF connector causes insertion loss.

C. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.

D. RF cables have upper and lower frequency range specifications.

E. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.

正確答案: B,C,D

問題3

What answer correctly completes the following sentence?
____________ and physical carrier sense functions are used to determine if the wireless medium is busy.

A. Active

B. Passive

C. Virtual

D. Backup

正確答案: C

問題4

In WLAN security, which authentication method always create Layer 2 dynamic encryption keys?

A. WEP

B. EAP-TLS

C. Shared Key

D. HTTPS Captive Portal

正確答案: B

問題5

The IEEE 802.11a/n/ac physical layer technologies utilize the 5 GHz frequency band. What is true ofthe channels in this frequency spectrum?

A. 14 channels are available worldwide.

B. Regulatory domains worldwide require DFS and TPC in all these channels.

C. DFS may be required in some regulatory domains on somechannels.

D. 802.11 channels areseparated by 5 Mhz

E. 11 channels are available worldwide.

正確答案: C

問題6

Youare implementing a VHT-capable AP. Which one of the following channels is available in the 802.11ac amendment to the 802.11-2012 standard, which was not available in the standard before this amendment?

A. 161

B. 56

C. 48

D. 153

E. 144

正確答案: E

問題7

In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping?
(Choose 2)

A. Channels 8 and 11

B. Channels 2 and 8

C. Channels 10 and 13

D. Channels 3 and 7

E. Channels 1 and 5

F. Channels 5 and 10

正確答案: B,F

問題8

You have been sent as a consultant to a customer site that is experiencing problems with some 2.4 GHz clients on their 802.11a/g/n/ac network. After collecting informationfrom the company about the problem, your initial troubleshooting step is to find a client device experiencing performance problems and observe its 802.11 frame exchanges in a protocol analyzer. The retransmission rate for that client is 65% instead of thecompany's baseline, which is 9%.
Based on this information, what troubleshooting step should follow to isolate the problem?

A. Install Wi-Fi endpoint security and reporting software on the client device to monitor and log the retransmission behavior.

B. Evaluate the client's operating frequency band with a spectrum analyzer, looking for a high noise floor or interference sources.

C. With a protocol analyzer, identify the client's roaming threshold settings and reassociation behavior.

D. Utilize a laptop-based site survey and planning tool to create a predictive model of the optimal AP placement in the customer's facility.

E. Check theframe decodes in the protocol analyzer and look for an excessive number of deauthentication frames.

正確答案: B

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