Practice Free CWAP-404 Exam Online Questions
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
You are analyzing a packet decode of a Probe Request and notice the SSID element has a length of zero.
What do you conclude about transmitting STA?
- A . The WLAN adaptor is configured in promiscuous mode
- B . The STA is operating in Ad-Hoc mode
- C . The STA’s WLAN adaptor is disabled
- D . The STA is discovering a list of available BSSs
A PHY Header is added to the PSDU at which sub-layer?
- A . LLC
- B . MAC
- C . PLCP
- D . PMD
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
The PLCP sublayer provides framing by adding a header to create what type of data unit?
- A . MSDU
- B . MPDU
- C . PSDU
- D . PPDU
What is encrypted within the fourth frame of the 4-Way Handshake?
- A . PMK
- B . PTK
- C . GMK
- D . GTK
What is the function of 802.11 Management frames?
- A . Manage the BSS
- B . Manage the flow of data
- C . Communicate configuration changes between WLAN controller and APs
- D . Prioritize network administration traffic
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
Why would a STA that supports 802.11k Radio Measurement send a Neighbor Request to an AP?
- A . To learn about neighboring interference sources and tune its RF radio accordingly
- B . To inform the current AP about the STA’s intent to roam to a neighboring AP, ensuring a seamless
handover - C . To request a list of neighboring APs which the STA can use as roaming candidates
- D . To request a list of neighboring STAs which enables the STA to better pick the right protection
mechanisms
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