Practice CWNA-109 Exam Online

Question 1

You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location. During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems. Based on this information, what is the likely cause of the problem?

A : The AP is overloaded during the work day

B : The laptop has a failing wireless adapter

C : The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use

D : The drives in the laptop are corrupt

Answer: C

Question 2

You are evaluating access points for use in the 5 GHZ frequency band. What PHY supports this band and supports 80 MHz channels?

A : HT

B : VHT

C : OFDM

D : ERP

Answer: B

Question 3

Which unit of measure is used to compare antennas to a dipole antenna?

A : mDw

B : mW

C : dBi

D : dBd

Answer: D

Question 4

What statement about the IEEE 802.11-2016 QoS facility is true?

A : 802.11 control frames are assigned to the 802.11 EF priority queue

B : When the Voice queue has frames awaiting transmission, no data will be transmitted from the Best Effort queue.

C : Four 802.1p user priorities are mapped to eight 802.11 transmit queues.

D : 802.11 QoS is achieved by giving high priority queues a statistical advantage at winning contention.

Answer: D

Question 5

You are configuring an access point to use channel 128. What important fact should be considered about this channel?

A : It is a channel that is unsupported by most access points

B : It is a 22 MHz channel so it will overlap with the channels above and below it

C : It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used

D : It is a channel that likely requires DFS when used

Answer: D

Name:	Certified Wireless Network Administrator
Exam Code:	CWNA-109
Certification:	CWNA
Vendor:	CWNP
Total Questions:	128
Last Updated:	Feb 10, 2026

CWNP CWNA-109 Answers