Question 1

What is the difference between a Data frame and a QoS-Data frame?

Options :

A : QoS Data frames include a DSCP control field

B : QoS Data frames include a QoS information element

C : QoS Data frames include an 802.1Q VLAN tag

D : QoS Data frames include a QoS control field

Answer: D

Question 2

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?

Options :

A : Look at Retry counts

B : Capture on the channel you think may be impacted by ACI and see if any frames are captured from adjacent channels

C : Look for frames with a low signal strength value in the radio tap header

D : Look at CRC errors

Answer: B

Question 3

You are working in an organization that has implemented an SCA-based WLAN. You want to change the RF channel for a single AP. What can you do to perform this task with some SCA solutions?

Options :

A : Access the AP using SSH and change the channel

B : Access the AP through the console port and change the channel

C : Access the AP using Telnet and change the channel

D : Convert the network to MCA

Answer: D

Question 4

A manufacturing facility has installed a new automation system which incorporates an 802.11 wireless network. The automation system is controlled from tablet computers connected via the WLAN. However, the automation system has not gone live due to problem with the tablets connecting to the WLAN. The WLAN vendor has been onsite to perform a survey and confirmed good primary and secondary coverage across the facility. As a CWAP you are called in to perform Spectrum Analysis to identify any interference sources. From the spectrum analysis, you did not identify any interference sources but were able to correctly identify the issue. Which of the following issues did you identify from the spectrum analysis?

Options :

A : The tablets are connecting to the wrong SSID

B : The tablets are entering power save mode and failing to wake up to receive the access points transmissions

C : A high noise floor has resulted in a SNR of less than 20dB

D : There is a power mismatch between the APs and the clients

Answer: D

Question 5

Finish the statement: It is possible to distinguish between_______22 MHz transmissions and________20 MHz transmissions when looking at an FFT plot.

Options :

A : HR/DSSS and ERP

B : OFDM and HT

C : ERP and VHT

D : HT and VHT

Answer: B

Confidently Practice Online with Free CWAP-405 Exam Cram

Buying Options: