CWNP CWNP Certification CWAP-403 Questions & Answers

• Question 11:

  When would you expect to see a Reassociation Request frame?

  A. Every time a STA associates to an AP to which it has previously been associated

  B. Only when a STA is using FT roaming

  C. Only when a STA roams back to an AP it has previously been associated with

  D. Every time a STA roams

  Correct Answer: D

• Question 12:

  When performing protocol analysis, you notice a high number of RTS/CTS frames being transmitted on an HT network. You suspect this may be due to HT protection mechanisms. Where in the Beacon frame would you look to determine which one of the four HT protection modes the AP is operating in?

  A. HT Protection Element

  B. HT Information Element

  C. HT Operation Element

  D. Non-HT Present Element

  Correct Answer: A

• Question 13:

  The PLCP sublayer provides framing by adding a header to create what type of data unit?

  A. MSDU

  B. MPDU

  C. PSDU

  D. PPDU

  Correct Answer: D

• Question 14:

  When configuring a long term, forensic packet capture and saving all packets to disk which of the following is not a consideration?

  A. Total capture storage space

  B. Individual trace file size

  C. Real-time packet decodes

  D. Analyzer location

  Correct Answer: B

• Question 15:

  A PHY Header is added to the PSDU at which sub-layer?

  A. LLC

  B. MAC

  C. PLCP

  D. PMD

  Correct Answer: C

• Question 16:

  802.11k Neighbor Requests and Neighbor Reports are sent in what type of Management Frames?

  A. RRM

  B. Action

  C. Beacon

  D. Reassociation Request and Reassociation Response

  Correct Answer: C

• Question 17:

  Which one of the following statements describes the function of WMM Admission Control?

  A. APs guarantee Voice and Video access categories priority over the WLAN medium

  B. APs control access to the wireless medium by polling STAs for data packets

  C. APs regulate the available bandwidth in an attempt to provide a guarantee of the amount of time that a STAhas available to access the channel

  D. Provides a new 802.11 Authentication method for Voice devices

  Correct Answer: A

• Question 18:

  After examining a Beacon frame decode you see the SSID Element has a length of 0. What do you conclude about this frame?

  A. The frame is corrupted

  B. This is a common attack on WISP backend SQL databases

  C. The beacon is from a BSS configured to hide the SSID

  D. SSID elements always have a length of 0

  Correct Answer: C

• Question 19:

  ABC International has installed a new smart ZigBee controlled lighting system. However, the network team is concerned that this new system will interface with the existing WLAN and has asked you to investigate the impact of the two systems operating simultaneously in the 2.4 GHz band. When performing Spectrum Analysis, which question could you answer by looking at the FFT plot?

  A. Do the ZigBee channels used by the lightning system overlap with the WLAN channels?

  B. Is the ZigBee system using more the 50% of the available airtime?

  C. Is the ZigBee system causing an increase in WLAN retries?

  D. Is the WLAN corrupting ZigBee system messages?

  Correct Answer: C

• Question 20:

  You are performing a multiple adapter channel aggregation capture to troubleshoot a VoIP roaming problem and would like to measure the roaming time from the last VoIP packet sent on the old AP's channel to the first VoIP packet sent on the new AP's channel. Which timing column in the packet view would measure this for you?

  A. Delta

  B. Absolute

  C. Roaming

  D. Relative

  Correct Answer: C