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CWNP CWAP-402 Exam Syllabus Topics:

CWNP Certified Wireless Analysis Professional Sample Questions:

1. You are using a laptop-based protocol analyzer to scan all channels and determine the basic configuration of the WLAN Basic Service Set in your facility. You are scanning all channels. All configured with default settings.
What can you change to cause the scan to run faster while still APs are capturing beacon frames on all the channels?

A) Configure the RBW to more than 120 kHz
B) Configure the scan time for channels to 300-500 ms
C) Configure the fragmentation threshold to 1500 bytes
D) Configure the scan time for channels to <100 ms

2. You are troubleshooting throughput problems for a WLAN cell. The cell is provisioned with an 802.11ac dual-band AP. Users connected with both 5 GHz and 2.4 GHz connections are reporting performance problems. The AP settings are properly optimized. No interface issues have been detected (either co-channel interference or non-Wi-Fi interference) and the number of associated users is low.
What should you analyze to resolve the issue?

A) The 5 GHz radio configuration
B) The 2.4 GHz radio configuration
C) the Ethernet uplink and the network infrastructure
D) The antennas used on the client devices

3. Given: Adjacent Channel Interference (ACI) can cause frame corruption and poor performance in WLANs. You are using a protocol analyzer in the attempt to detect ACI.
What should you look for in such a scenario?

A) Capture on the channel you think may be impacted by ACI and see if any frames are captured from adjacent channels
B) Look at Retry counts
C) Look at CRC errors
D) Look for frames with a low signal strength value in the radio tap header

4. You have received reports of performance problems in a BSS. One specific user is indicating that her downloads are taking a very long time compared to other users around her. You want to determine if the AP is sending frames multiple times to get through to the user's computer.
Where should you monitor with the protocol analyzer to see retries from the AP in this scenario?

A) Directly in the middle of the AP and client STA
B) Capture from another AP in another BSS
C) Very near the client STA
D) Very near the AP

5. You are troubleshooting VoIP WLAN issues. When performing a PING to a remote device that would be involved in a call link, you see that the time value averages 220 milliseconds.
How much extra delay beyond that recommend for VoIP links is in this link?

A) There is not enough information because the PING command give round-trip-times
B) There is no extra delay beyond that recommended, instead there is 80 milliseconds less
C) There is 80 milliseconds more delay than recommended
D) There is 70 milliseconds more delay than recommended

Solutions: