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CWNP CWAP-403 Certified Wireless Analysis Professional Exam Practice Test

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Total 60 questions

Certified Wireless Analysis Professional Questions and Answers

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Question 1

You’re the WLAN administrator for a large retailer based at the HQ in New York. The London-based office has been complaining about WLAN disconnections around lunch time each day. You suspect this might be interference from the staff microwave, how might you test your theory from the New York office?

Options:

A.

Access the microwave remotely and run a diagnostic check

B.

Ask a local member of staff to take some pictures of the microwave, including some close-ups of the door seal so that you can access it

C.

Place one of the London APs into spectrum analyzer mode and monitor the situation over lunch time

D.

Ask a local member of staff to change the frequency of the microwave and see if the disconnections stop

Question 2

After examining a Beacon frame decode you see the SSID Element has a length of 0. What do you conclude about this frame?

Options:

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

Question 3

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

Options:

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

Question 4

Finish the statement. It is possible to distinguish between _______and ______20 MHz transmissions when looking at an FFT plot.

Options:

A.

HR/DSSS and ERP

B.

ERP and VHT

C.

HT and VHT

D.

OFDM and HT

Question 5

When would you expect to see a Reassociation Request frame?

Options:

A.

Every time a STA associates to an AP to which it has previously been associated

B.

Only when a STA is using FT roaming

C.

Only when a STA roams back to an AP it has previously been associated with

D.

Every time a STA roams

Question 6

Using a portable analyzer you perform a packet capture next to a client STA and you can see that the STA is associated to a BSS. You observe the STA sending packets to the AP and the AP sending packets to the STA. Less the 2% of all packets are retransmissions. You move to capture packets by the AP and, while the retry rate is still very low, you now only see unidirectional traffic from the AP to the client. How do you explain this behavior?

Options:

A.

There is a transmit power mismatch between the client and the AP and while the client can hear the Aps traffic, the AP cannot hear the client.

B.

The portable analyzer has a lower receive sensitivity than the AP and while it can’t capture the packets

from the client STA, the AP can receive them OK.

C.

The STA is transmitting data using more spatial streams than the potable analyzer can support

D.

The portable analyzer is too close to the AP causing CCI, blinding the AP to the client’s packets

Question 7

Prior to a retransmission what happens to the CWmax value?

Options:

A.

Reset to 0

B.

Doubles and increases by 1

C.

Increases by 1

D.

Set to the value of the AIFSN

Question 8

What is the function of 802.11 Management frames?

Options:

A.

Manage the BSS

B.

Manage the flow of data

C.

Communicate configuration changes between WLAN controller and APs

D.

Prioritize network administration traffic

Question 9

What is encrypted within the fourth frame of the 4-Way Handshake?

Options:

A.

PMK

B.

PTK

C.

GMK

D.

GTK

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Total 60 questions