CWAP-403 Real Exam Questions and Verified Answers

Question 1 Single choice

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

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Correct answer: D

Question 2 Single choice

Which one of the statements regarding the Frame Control field in an 802.11 MAC header is true?

A
Only Control frames have a Frame Control field
B
The Frame Control field contains three sub-fields and eight one-bit flags
C
The Frame Control field is used to communicate the duration value
D
The Frame Control field is always set to 0

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Correct answer: D

Question 3 Single choice

How is the length of an AIFS is calculated?

A
AIFSN * Slot Time + SIFS
B
SIFS * Slot Time + AIFSN
C
DIFS + SIFS + AIFSN
D
SIFS + AIFS * Time Unit

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Correct answer: A

Question 4 Single choice

Which one of the these is the most important in the WLAN troubleshooting methodology among those listed?

A
Interview the network manager about the issues being experienced
B
Talk to the end users about their experiences
C
Observe the problem
D
Obtain detailed knowledge of the wireless vendors debug and logging options

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Correct answer: C

Question 5 Single choice

Which piece of information Is not transmitted in an HT PDDU header?

A
Number of Spatial Streams
B
PPDU length
C
Channel number
D
MCS index

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Correct answer: D

Question 6 Single choice

When configuring a long term, forensic packet capture and saving all packets to disk which of the following is not a consideration?

A
Total capture storage space
B
Individual trace file size
C
Real-time packet decodes
D
Analyzer location

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Correct answer: B

Question 7 Single choice

Where would you look in a packet trace file to identify the configured Minimum Basic Rate (MBR) of a BSS?

A
Supported Rates & Extended Supported Rates elements in a Beacon frame
B
In the MBR Action frame
C
In the Minimum Basic Rate Element in a Beacon frame
D
In the MBR Information Element in an Association Response frame

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Correct answer: A

Question 8 Single choice

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

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Correct answer: C

Question 9 Single choice

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

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Correct answer: C

Question 10 Single choice

What Interframe space would be expected between a CTS and a Data frame?

A
SIFS
B
DIFS
C
AIFS
D
PIFS

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Correct answer: A