CWNP Certified Wireless Network Administrator Exam (CWNA-108) Free Practice Test

Question 1

A dual-band 802.11ac AP must be powered by PoE. As a class 4 device, what power level should be received at the AP?

A. 12.95 W

B. 15.4 W

C. 30 W

D. 25.5 W

Correct Answer: D

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Question 2

An RF signal sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?

A. Warping

B. Reflection

C. Scattering

D. Refraction

Correct Answer: D

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Question 3

You are a small business wireless network consultant and provide WLAN services for various companies. You receive a call from one of your customers stating that their laptop computers suddenly started experiencing much slower data transfers while connected to the WLAN. This company is located in a multi-tenant office building and the WLAN was designed to support laptops, tablets and mobile phones. What could cause a sudden change in performance for the laptop computers?

A. The sky was not as cloudy that day as it typically is and the sun also radiates electromagnetic waves.

B. The antennas in the laptops have been repositioned.

C. A new tenant in the building has set their AP to the same RF channel that your customer is using.

D. A few of your customer's users have Bluetooth enabled wireless headsets.

Correct Answer: C

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Question 4

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

B. The AP is overloaded during the work day

C. The laptop has a failing wireless adapter

D. The drivers in the laptop are corrupt

Correct Answer: A

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Question 5

What best describes WPA2 in relation to 802.11 wireless networks?

A. WPA2 is specified in the 802.11 standard as implementing CCMP/AES.

B. WPA2 is the second version of WPA and it enhances security through the use of TKIP instead of WEP.

C. WPA2 is a certification created by the Wi-Fi Alliance that validates devices correctly implement CCMP/ AES.

D. WPA2 is the standard that defines security for WLANs.

Correct Answer: D

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Question 6

ABC Company is planning a point-to-multipoint outdoor bridge deployment with standalone (autonomous)
802.11 bridge units. 802.1X/EAP will be used for bridge authentication. A Linux-based RADIUS server will be used for authentication. What device in the bridge implementation acts as the 802.1X Authenticator?

A. The Ethernet switch

B. All non-root bridges

C. The RADIUS server

D. The root bridge

Correct Answer: D

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Question 7

Option 43 must be configured to allow access points to locate controllers. In what network service should this option be configured?

A. DNS

B. DHCP

C. RADIUS

D. LDAP

Correct Answer: B

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Question 8

A POE device requires 47 W of power. What POE specification should be used?

A. 802. 11at

B. 802.3at

C. 802.3bt

D. 802.3af

Correct Answer: C

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Question 9

What common feature of MDM solutions can be used to protect enterprise data on mobile devices?

A. Containerization

B. Onboarding

C. Over-the-air registration

D. Self-registration

Correct Answer: A

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Question 10

The BSA of an AP covers the area used by the sales and marketing department. Thirty-five stations operate in this space. The users indicate that they need more throughput and all stations are 5 GHz capable 802.11ac clients. The current AP configuration uses 20 MHz channels in both 2.4 GHz and 5 GHz. What is the least expensive solution available for increasing throughput for these users without implementing configuration options that are not recommended?

A. Install a second AP in the coverage area

B. Use a 160 MHz channel on the 5 GHz radio

C. Use a 40 MHz channel on the 2.4 GHz radio

D. Use a 40 MHz channel on the 5 GHz radio

Correct Answer: D

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CWNP Certified Wireless Network Administrator (CWNA-108) Free Practice Test