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:

  Prior to a retransmission what happens to the CWmax value?

  A. Reset to 0
  B. Doubles and increases by 1
  C. Increases by 1
  D. Set to the value of the AIFSN
  B. Doubles and increases by 1

• Question 5:

  Which common feature of a Spectrum Analyzer would be the best to help you locate a non-802.11 interference source?

  A. Max hold
  B. Location filter
  C. Waterfall plot
  D. Device finder
  D. Device finder

• Question 6:

  Which one of the following is not a valid acknowledgment frame?

  A. RTS
  B. CTS
  C. Ack
  D. Block Ack
  C. Ack

• Question 7:

  Which one of the following is required for Wi-Fi integration in laptop-based Spectrum Analyzer software?

  A. A supported WLAN adaptor with a customized driver
  B. Any 802.11 wireless adaptor
  C. A dual radio spectrum analyzer card
  D. SNMP read credentials to the WLAN controller or APs
  C. A dual radio spectrum analyzer card

• Question 8:

  What is the function of the PHY Preamble?

  A. To set the modulation method for the MPDU
  B. Allows the receiver to detect and synchronize with the signal
  C. To terminate a conversation between transmitter and receiver
  D. Carries the NDP used in Transmit Beamforming and MU-MIMO
  B. Allows the receiver to detect and synchronize with the signal

• Question 9:

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

• Question 10:

  What is the difference between a Data frame and a QoS-Data frame?

  A. QoS Data frames include a QoS control field
  B. QoS Data frames include a QoS information element
  C. QoS Data frames include a DSCP control field
  D. QoS Data frames include an 802.1Q VLAN tag
  A. QoS Data frames include a QoS control field