CWNP CWAP-403 Exam Practice Test Instant Access

Question 1

Where, in a protocol analyzer, would you find an indication that a frame was transmitted as part of an AMPDU?

AThe HT Operation Element

BA-MPDU flag in the HT Control Field

CA-MPDU flag in the Frame Control Field

DThe Aggregation flag in the Radio Tap Header

Answer : B

Question 2

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?

AThe WLAN adaptor is configured in promiscuous mode

BThe STA is operating in Ad-Hoc mode

CThe STA's WLAN adaptor is disabled

DThe STA is discovering a list of available BSSs

Answer : B

Question 3

As a wireless network consultant you have been called in to troubleshoot a high-priority issue for one of your customers. The customer's office is based on two floors within a multi-tenant office block. On one of these floors (floor 5) users cannot connect to the wireless network. During their own testing the customer has discovered that users can connect on floor 6 but not when they move to the floor 5. This issue is affecting all users on floor 5 and having a negative effect on productivity.

To troubleshoot this issue, you perform both Spectrum and Protocol Analysis. The Spectrum Analysis shows the presence of Bluetooth signals which you have identified as coming from wireless mice. In the protocol analyzer you see the top frame on the network is Deauthentication frames. On closer investigation you see that the Deauthentication frames' source addresses match the BSSISs of your customers APs and the destination address is FF:FF:FF:FF:FF:FF:FF.

What do you conclude from this troubleshooting exercise?

AThe customer should replace all their Bluetooth wireless mice as they are stopping the users on floor 5
from connecting to the wireless network

BThe users on floor 5 are being subjected to a denial of service attack, as this is happening across the
entire floor it is likely to be a misconfigured WIPS solution belonging to the tenants on the floor below

CThe customers APs are misbehaving and a technical support case should be open with the vendor

DThe CCI from the APs on the floor 4 is the problem and you need to ask the tenant below to turn down their AP's Tx power

Answer : A

Question 4

How does a VoIP Phone, using WMM Power Save, request data frames buffered at the AP?

AThe VoIP phone transmits a PS-Poll frame

BThe VoIP phone transmits a trigger frame

CThe VoIP phone sets the More Data bit in the MAC Header to 1

DThe VoIP phone The VoIP transmits a WMM Action frame

Answer : B

Question 5

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

ASIFS

BDIFS

CAIFS

DPIFS

Answer : A

Question 6

Which common feature of a Spectrum Analyzer would be the best to help you locate a non-802.11

interference source?

AMax hold

BLocation filter

CWaterfall plot

DDevice finder

Answer : D

Question 7

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 are

AWhile 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?

AThe AP is misconfigured and needs to be reconfigured to 80MHz operation

BRRM is enabled and has dynamically picked a 20 MHz channel

CThe 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

DNon Wi-Fi interference is preventing the APs 80 MHz operation

Answer : C

CWNP CWAP-403 Certified Wireless Analysis Professional (CWAP) Exam Practice Test