Question 1

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 2

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 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

What action is taken automatically by 802.11 APs and client STAs as the signal strength of the link weakens in order to improve the quality of the RF communications overall?

Options :

A : Output power is increased

B : RSSI is increased

C : Data rates are reduced

D : Antenna gain is increased

Answer: C

Question 5

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

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