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CWNP CWAP-405 Exam Syllabus Topics:

CWNP Certified Wireless Analysis Professional Sample Questions:

1. What is the purpose of a PHY preamble?

A) It communicates important information about the PSDU's length, rate, and upper layer protocol- related parameters.
B) It provides the receiver(s) with an opportunity for RF channel synchronization prior to the start of the PLCP header.
C) It provides a cyclic redundancy check (CRC) for the receiving station to validate that the PLCP header was received correctly.
D) It indicates to the PHY the modulation that shall be used for transmission (and reception) of the PSDU.

2. What is encrypted within the third message of the 4-Way Handshake?

A) PMK
B) PTK
C) GTK
D) GMK

3. IEEE 802.11-2007 specifies two ERP protection mechanisms: RTS/CTS and CTS-to-Self. Which statement is true regarding these two protection mechanisms? (Choose 2)

A) RTS and CTS frames are relayed through the access point, whereas the CTS-to-Self frames are not.
B) A CTS-to-Self frame sent by a client station may reach fewer nodes than the RTS/CTS frame exchange.
C) RTS and CTS frames use Short Interframe Spaces (SIFS), and CTS-to-Self frames use PCF Interframe Spaces (PIFS).
D) By definition, all associated client stations in a BSS can hear RTS, CTS, and CTS-to-Self frames, so RTS/CTS and CTS-to-Self mechanisms have equal effectiveness.
E) Aside from the Subtype subfield of the Frame Control field, the generic MAC header format of RTS and CTS frames are identical.
F) Use of RTS/CTS requires more overhead than CTS-to-Self due to a higher number of frames transmitted onto the wireless medium.

4. Which one of the following should be the first step when troubleshooting a WLAN issue?

A) Perform an initial WLAN scan and see if any obvious issues stand out
B) Identify probable causes
C) Define the problem
D) Identify capture locations

5. What is the function of the PHY layer?

A) Convert MSDUs to PPDUs for transmissions and PPDUs to MSDUs for receptions
B) Convert PPDUs to PSDUs for transmissions and PSDUs to PPDUs for receptions
C) Convert PPDUs to MSDUs for transmissions and MSDUs to PPDUs for receptions
D) Convert PSDUs to PPDUs for transmissions and PPDUs to PSDUs for receptions

Solutions: