CWNP CWAP-403 Online Practice Questions and Exam Preparation

CWNP CWAP-403 Online Questions & Answers

• Question 1:

  You are troubleshooting a client that is experiencing slow WLAN performance. As part of the troubleshooting activity, you start a packet capture on your laptop close to the client device. While analyzing the packets, you suspect that you have not captured all packets transmitted by the client. By analyzing the trace file, how can you confirm if you have missing packets?

  A. Look for gaps in the sequence number in MAC header
  B. Protocol Analyzers show the number of missing packets in their statistics view
  C. Retransmission are an indication of missing packets
  D. The missing packets will be shown as CRC errored packets
  C. Retransmission are an indication of missing packets

• Question 2:

  During a VHT Transmit Beamforming sounding exchange, the beamformee transmits a Compressed Beamforming frame to the beamformer. What is communicated within this Compressed Beamforming frame?

  A. Steering Matrix
  B. Beamforming Matrix
  C. Feedback Matrix
  D. Beamformee Matrix
  C. Feedback Matrix

• Question 3:

  Which one of the best following is an advantage of using display filters instead of capture-time filters?

  A. Display filters allow for focused analysis on just the packets of interest
  B. Once created display filters are reusable for later captures
  C. Display filters only hide the packets from view and the filtered packets can be enabled for view later
  D. Multiple display filters can be applied simultaneously
  A. Display filters allow for focused analysis on just the packets of interest

• Question 4:

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

  A. The HT Operation Element
  B. A-MPDU flag in the HT Control Field
  C. A-MPDU flag in the Frame Control Field
  D. The Aggregation flag in the Radio Tap Header
  B. A-MPDU flag in the HT Control Field

• Question 5:

  In a Spectrum Analyzer the Swept Spectrogram plot displays what information?

  A. The RF time domain
  B. RF power present at a particular frequency over the course of time
  C. Wi-Fi Device information
  D. Duty cycle in the frequency domain
  D. Duty cycle in the frequency domain

• Question 6:

  In which element of a Beacon frame would you look to identify the current HT protection mode in which an AP is operating?

  A. HT Capabilities Element
  B. HT Protection Element
  C. HT Information Element
  D. HT Operations Element
  C. HT Information Element

• Question 7:

  Using a portable analyzer you perform a packet capture next to a client STA and you can see that the STA is associated to a BSS. You observe the STA sending packets to the AP and the AP sending packets to the STA. Less the 2% of all packets are retransmissions. You move to capture packets by the AP and, while the retry rate is still very low, you now only see unidirectional traffic from the AP to the client. How do you explain this behavior?

  A. There is a transmit power mismatch between the client and the AP and while the client can hear the Aps traffic,the AP cannot hear the client.
  B. The portable analyzer has a lower receive sensitivity than the AP and while it can't capture the packets from the client STA, the AP can receive them OK.
  C. The STA is transmitting data using more spatial streams than the potable analyzer can support
  D. The portable analyzer is too close to the AP causing CCI, blinding the AP to the client's packets
  B. The portable analyzer has a lower receive sensitivity than the AP and while it can't capture the packets from the client STA, the AP can receive them OK.

• Question 8:

  Protocol analyzers may present field values in either binary, decimal or hexadecimal. What precedes a hexadecimal value to indicate it is hexadecimal?

  A. 0x
  B. %
  C. HEX
  D. 16x
  A. 0x

• Question 9:

  What should the To DS and From DS flags be to set to in an Association Response frame?

  A. To DS = 0, From DS = 0
  B. To DS = 0, From DS = 1
  C. To DS = 1, From DS = 0
  D. To DS = 1, From DS = 1
  A. To DS = 0, From DS = 0

• Question 10:

  Which one of the following is not a valid reason for an AP to fail a STAs association?

  A. Requesting station has the wrong PSK
  B. Does not support the specified authentication algorithm
  C. AP is unable to handle additional associations
  D. Requesting station does not support all the required data rates
  A. Requesting station has the wrong PSK