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CWNP CWAP-403 - Questions & Answers

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Question 1
Single choice

When a data frame is encrypted with WPA2, to which portion of the frame is the encryption applied?

A.

Frame body excluding the LLC

B.

Frame body including the LLC

C.

Frame body and MAC Header

D.

The whole MPDU

Question 2
Single choice

In the 2.4 GHz band, what data rate are Probe Requests usually sent at from an unassociated STA?

A.

The minimum basic rate

B.

1 Mbps

C.

6 Mbps

D.

MCS 0

Question 3
Single choice

An RST frame should be acknowledged by which frame?

A.

Ack

B.

CTS

C.

Block Ack

D.

RTS-Ack

Question 4
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

Question 5
Single choice

Given a protocol analyzer can decrypt WPA2-PSK data packets providing the PSK and SSID are configured in the analyzer software.

When performing packet capture (in a non-FT environment) which frames are required in order for PSK frame decryption to be possible?

A.

Authentication

B.

Reassociation

C.

4-Way Handshake

D.

Probe Response

Question 6
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

Question 7
Single choice

How many frames make up the Group Key Handshake excluding any Ack frames that may be required?

A.

1

B.

2

C.

3

D.

4

Question 8
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

Question 9
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

Question 10
Single choice

You are analyzing a packet decode of a Probe Request and notice the SSID element has a length of zero.

What do you conclude about transmitting STA?

A.

The WLAN adaptor is configured in promiscuous mode

B.

The STA is operating in Ad-Hoc mode

C.

The STA's WLAN adaptor is disabled

D.

The STA is discovering a list of available BSSs

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