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CWAP-404 Latest Real Test & CWAP-404 Free Exam

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CWNP CWAP-404 Exam Syllabus Topics:

Topic
Details

Topic 1

Frame Exchanges: The topic evaluates the skills of a wireless network professional in capturing, understanding, and analyzing various frame exchanges, including BSS discovery, joining, roaming, and data frames. The CWAP-404 exam targets the ability of candidates to troubleshoot and resolve issues related to MAC layer operations, ensuring they can maintain robust and efficient WLAN communications.

Topic 2

PHY Layers and Technologies: In the topic, the CWAP-404 exam tests the understanding of a wireless network professional about the Physical (PHY) layer functions and technologies. Wireless analysts need to describe and apply knowledge of PHY headers, PPDUs, and other PHY-related data. This topic ensures that analysts are proficient in interpreting PHY information within protocol analyzers and can select appropriate capture devices for different PHY types.

Topic 3

Spectrum Analysis: The topic assesses the ability of a wireless network professional to capture and interpret RF spectrum data. The exam targets the skills in identifying device signatures and RF issues through spectrum analyzers.

Topic 4

Protocol Analysis: The topic in the CWNP CWAP-404 Exam evaluates the skill of a wireless network professional to capture and analyze 802.11 frames effectively. Candidates must demonstrate proficiency in configuring protocol analysis tools, interpreting frame captures to diagnose issues, and applying appropriate troubleshooting methods.

Topic 5

WLAN Medium Access: The exam evaluates the understanding of a wireless network professional about 802.11 contention algorithms and their impact on WLAN performance. The CWAP-404 exam requires candidates to analyze QoS configurations and operations.

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CWNP Certified Wireless Analysis Professional Sample Questions (Q134-Q139):

NEW QUESTION # 134
As it pertains to HT L-SIG TXOP Protection, what statement is true?

A. An L-SIG TXOP protected frame exchange sequence always begins with an RTS/CTS or a CTS- to-Self.
B. Support for L-SIG TXOP Protection is indicated by HT stations in the L-SIG field of the PLCP header of HT-mixed format frames.
C. L-SIG TXOP Protection is specified for the purpose of protecting OFDM (802.11a/g) and HT- OFDM (802.11n) transmissions from HR/DSSS stations.
D. Support for L-SIG TXOP Protection is indicated in the HT Capabilities Info field of (re)association request frames sent by ERP, OFDM, and HT-OFDM stations.

Answer: A

NEW QUESTION # 135
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 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
B. Non Wi-Fi interference is preventing the APs 80 MHz operation
C. RRM is enabled and has dynamically picked a 20 MHz channel
D. The AP is misconfigured and needs to be reconfigured to 80MHz operation

Answer: B

Explanation:
The most likely cause of higher airtime utilization on the first 20 MHz of the 80 MHz channel is non- Wi-Fi interference. Non-Wi-Fi interference can prevent an AP from using its full channel width, as it will degrade the signal quality and increase the noise floor on some parts of the channel. This will force the AP to fall back to a narrower channel width, such as 20 MHz or 40 MHz, to maintain communication with its clients. The waterfall plot can help identify non-Wi-Fi interference by showing spikes or bursts of RF energy on specific frequencies or sub-channels.
The other options are not correct, as they do not explain why only the first 20 MHz of the channel has higher airtime utilization.

NEW QUESTION # 136
Given: Protocol analyzer often have useful graphical dashboards providing information about the health and operations of the WLAN.
What is a valid use of a graph showing the Top APs Based on Active Associations?

A. Ensuring compliance with corporate security policies
B. Locating overloaded APs
C. Discovering the total number of client STAs on your network
D. Evaluating the capacity handling on a specific channel

Answer: B

NEW QUESTION # 137
You are performing 802.3 network analysis. For what are the DA and SA fields used in the frame header?

A. Defining either distance access routing or strict access routing
B. Defining either direct access or sourced access
C. They are not used; addresses are only used in the 802.11 header
D. Defining the addresses sending and receiving the frame

Answer: D

NEW QUESTION # 138
Given the IEEE 802.11 Beacon frame decode shown, determine which statement is definitively true.

A. This Beacon frame came from an ERP or HT access point.
B. The SSID value in this Beacon is null.
C. The access point has both 1 Mbps and 2 Mbps configured as basic rates.
D. The access point is operating on channel 3.
E. ERP mobile stations must use the RTS/CTS protocol before Data transmissions.

Answer: A

NEW QUESTION # 139
......

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