CWAP Certified Wireless Analysis Professional - PW0-270 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

Which statements are true regarding wireless network discovery and scanning processes for an HT network? (Choose 2)

A. Client stations send Probe Request frames on all HT channels in the 2.4 GHz ISM band in a consecutive manner until they receive at least 3 Probe Response frames. B. Client stations may continually send Probe Request frames on all HT channels in the 2.4 GHz ISM band in a consecutive manner, regardless of their association state. C. Access points send Beacon frames only on the HT channel in the 2.4 GHz ISM band for which the access point is configured, and only after scanning that channel to discover existing BSSs. D. Client stations send Probe Request frames on all HT channels in the 2.4 GHz ISM band in a consecutive manner until they associate with an access point. After associating to an access point, they no longer transmit Probe Request frames. E. Access points send Beacon frames on all HT channels in the 2.4 GHz ISM band in a consecutive manner including the channel for which the access point is configured.

Discussion 0

Correct Answer: B,C Vote an answer

Question 2

What HT PPDU format is shown in the exhibit?

A. Dual Training Field format B. Non-HT format C. Non-HT duplicate format D. HT-greenfield format E. ERP-OFDM format F. HT-mixed format

Discussion 0

Correct Answer: F Vote an answer

Question 3

Shown is a screenshot of a wireless protocol analyzer displaying the decode information for a single 802.11 encrypted data + CF-Poll frame. The infrastructure BSS on which this information was captured is using WEP and this particular frame was sent from a client station (STA) to an access point (AP).

As a protocol analyst, how would you explain the existence of this frame on the wireless medium given the information in the decode?

A. The frame was misinterpreted because of insufficient information received by the analyzer due to frame corruption. B. The frame was sent by a client station that does not comply with IEEE HR/DSSS standard to an access point that is Wi-Fi certified. C. The access point is operating as a repeater, and clients must poll repeater access points in order to transmit data frames through them. D. The IEEE 802.11 network is using both version 1 and version 2 protocols simultaneously. This unexpected frame is from the version 2 protocol set.

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Correct Answer: A Vote an answer

Question 4

The Retry subfield is found in which IEEE 802.11 frame field?

A. Frame Control field B. MAC Service Data Unit field C. Protocol Order field D. Data Control field E. Sequence Control field F. QoS Control field

Discussion 0

Correct Answer: A Vote an answer

Question 5

The 802.11r-2008 amendment to the 802.11 specification introduces what new Information Elements (IEs) to facilitate fast BSS transitions? (Choose 2)

A. FT IE (Fast Transition) B. RSN IE (Robust Security Network) C. MD IE (Mobility Domain) D. DS IE (Distribution System) E. FSR IE (Fast Secure Roaming) F. HT IE (High Throughput)

Discussion 0

Correct Answer: A,C Vote an answer

Question 6

While at a government-operated facility, you are attempting to troubleshoot a WLAN performance problem using a wireless protocol analyzer. When you start capturing frames, you see a proprietary layer 2 protocol running over the ERP network as shown in this screenshot. The facility's WLAN administrator confirms that this protocol is proprietary and used for both data encryption and compression.

How will this information affect the steps you take to troubleshoot performance problems on this WLAN?

A. The proprietary encryption protocol will have no effect on your troubleshooting steps because the wireless protocol analyzer can still decode the PLCP and MAC headers of Data frames. This situation is essentially no different than troubleshooting a WLAN that uses WPA2-Personal. B. As long as you load the proprietary software codec onto your analyzer computer, you will be able to see all of the Data frame information fully decoded. Loading the proprietary software codec will allow you to troubleshoot the WLAN as though no encryption were in use. C. In order to troubleshoot performance problems on a network using proprietary encryption protocols like this one, you must use a wireless protocol analyzer that has integrated support for the protocol in use. D. Troubleshooting will be somewhat limited because only part of the information needed for performance measurements by the analyzer is encrypted. Each Data frame's MAC header will be encrypted, but the PLCP header can still be decoded successfully.

Discussion 0

Correct Answer: A Vote an answer