CWNP Certified Wireless Analysis Professional Sample Questions:

1. You have deployed a new 802.11ac WLAN for a customer who wants to take advantage of
802.11ac standardized Transmit Beamforming. After the installation you perform a protocol capture to confirm Transmit Beamforming is operating as expected. When analyzing the protocol exchange you observe the beamformer transmits a VHT NDP Announcement frame but you never see the transmitted NDP. What do you conclude from this behavior?

A) This indicates the beamformer is misconfigured.
B) This behavior is non-standard and is likely a bug with the current driver.
C) This is normal, 802.11ac includes the NDP within the VHT NDP Announcement.
D) NDPs are PHY PPDUs which contain no MPDU and therefore will not be displayed in a protocol analyzer.

2. When the Protected bit in the Frame Control field of the MAC header is set to 0, it always indicates:

A) Encryption is not enabled for the entire BSS
B) The AP is not operating in FIPS mode
C) The frame body is unencrypted
D) This is an RSN

3. As it pertains to HT L-SIG TXOP Protection, what statement is true?

A) An L-SIG TXOP protected frame exchange sequence always begins with an RTS/CTS or a CTS- to-Self.
B) Support for L-SIG TXOP Protection is indicated in the HT Capabilities Info field of (re)association request frames sent by ERP, OFDM, and HT-OFDM stations.
C) L-SIG TXOP Protection is specified for the purpose of protecting OFDM (802.11a/g) and HT- OFDM (802.11n) transmissions from HR/DSSS stations.
D) Support for L-SIG TXOP Protection is indicated by HT stations in the L-SIG field of the PLCP header of HT-mixed format frames.

4. A manufacturing facility has installed a new automation system which incorporates an 802.11 wireless network. The automation system is controlled from tablet computers connected via the WLAN. However, the automation system has not gone live due to problem with the tablets connecting to the WLAN. The WLAN vendor has been onsite to perform a survey and confirmed good primary and secondary coverage across the facility. As a CWAP you are called in to perform Spectrum Analysis to identify any interference sources. From the spectrum analysis, you did not identify any interference sources but were able to correctly identify the issue. Which of the following issues did you identify from the spectrum analysis?

A) A high noise floor has resulted in a SNR of less than 20dB
B) There is a power mismatch between the APs and the clients
C) The tablets are entering power save mode and failing to wake up to receive the access points transmissions
D) The tablets are connecting to the wrong SSID

5. Which statement is true regarding the Association Identifier (AID) used in IEEE 802.11 WLANs?

A) The client station is assigned an AID value in the 802.11 authentication response frame.
B) The AID field is present only in Beacons frames.
C) The AID has a maximum value of 2048, and is used to uniquely identify a wireless client station associated with an access point.
D) The AID is used by the access point in EDCA mode to reduce duplicate transmissions when sending multicasts.
E) The AID has a maximum value of 2007, and resides in the duration/ID field of a PS-Poll frame.

Solutions: