Practice Free CWAP-404 Exam Online Questions
What Interframe space would be expected between a CTS and a Data frame?
- A . SIFS
- B . DIFS
- C . AIFS
- D . PIFS
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
Which one of the following should be the first step when troubleshooting a WLAN issue?
- A . Identify capture locations
- B . Identify probable causes
- C . Perform an initial WLAN scan and see if any obvious issues stand out
- D . Define the problem
Which one of the following is not a valid acknowledgment frame?
- A . RTS
- B . CTS
- C . Ack
- D . Block Ack
You have installed a new 802.11ac WLAN configured with 80 MHz channels. Users in one area are
complaining about poor performance. This area is currently served by a single AP. You take a spectrum
analysis capture in the poor performing areA. While examining the waterfall plot you notice the airtime
utilization is higher on the first 20 MHz of the 80 MHz channel when compared to the rest of the channel.
What do you conclude?
- A . The AP is misconfigured and needs to be reconfigured to 80MHz operation
- B . RRM is enabled and has dynamically picked a 20 MHz channel
- C . The first 20 MHz is the AP’s primary channel and higher airtime utilization on the primary channel is normal when an AP Is configured for 80 MHz operation
- D . Non Wi-Fi interference is preventing the APs 80 MHz operation
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
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
STA has available to access the channel - D . Provides a new 802.11 Authentication method for Voice devices
Which one of the following is not an 802.11 Management frame?
- A . Action
- B . Authentication
- C . PS-Poll
- D . Beacon