CWAP-405問題集、CWNP実際の試験問題

質問 1

Where, in a protocol analyzer, would you find an indication that a frame was transmitted as part of an A-MPDU?

A. The Aggregation flag in the Radio Tap Header

B. The HT Operation Element

C. A-MPDU flag in the QoS Control Field

D. A-MPDU flag in the Frame Control Field

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 2

An HT STA does not receive an ACK for a first-attempt data frame that it transmitted. Assuming this STA is not using BlockAcks in this case, what happens to the HT STA's EDCA contention window?

A. The slot time within the contention window decreases by 50%.

B. It varies because the backoff algorithm is random.

C. The contention window is not affected by failed Data frame delivery.

D. The contention window is immediately closed, and the frame is retransmitted.

E. The contention window approximately doubles in size.

正解: E

質問 3

What interframe space would be expected between a CTS and a Data frame?

A. PIFS

B. DIFS

C. SIFS

D. AIFS

正解: C

解説: (PassTest メンバーにのみ表示されます)

質問 4

Which field, within a protocol analyzer, records the time at which a frame entered the capture buffer?

A. Absolute time

B. Bin time

C. Delta time

D. Buffer time

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 5

An A-MPDU must be acknowledged by what type of frame?

A. Block Ack

B. Ack

C. PPDU Ack

D. Either an Ack or Block Ack

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 6

When performing protocol analysis, you capture an 802.11ac data frame on channel 52, transmitted at MCS 8. At what data rate was the PHY Preamble transmitted?

A. 6 Mbps

B. 86.7 Mbps

C. 54 Mbps

D. 78 Mbps

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 7

Which one of the these is the most important in the WLAN troubleshooting methodology among those listed?

A. Interview the network manager about the issues being experienced

B. Observe the problem

C. Talk to the end users about their experiences

D. Obtain detailed knowledge of the wireless vendors debug and logging options

正解: B

解説: (PassTest メンバーにのみ表示されます)

CWNP Certified Wireless Analysis Professional - CWAP-405 模擬練習