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?

1. A. The laptop has a failing wireless adapter
2. B. the AP is overloaded during the work day
3. C. The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use
4. D. The drives in the laptop are corrupt

Correct Answer: B

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

1. A. Reflection
2. B. Refraction
3. C. Scattering
4. D. Warping

Correct Answer: B

You are managing a wireless access point in autonomous mode using the Web based interface. You capture traffic during this management task and notice that you can see the HTML code of the Web pages for access point management. What error in administration could be the cause of the security concern?

1. A. A VPN with the AP is not established
2. B. WPA2 is disabled on the WLAN
3. C. HTTP is in use instead of HTTPS
4. D. IPsec is not in use of the management connection as recommended

Correct Answer: C

Lynne runs a small hotel, and as a value added for his customers he has implemented a Wi-Fi hot-spot. Lynne has read news articles about how hackers wait at hot-spots trying to take advantage of unsuspecting users. He wants to avoid this problem at his hotel.
What is an efficient and practical step that Lynne can take to decrease the likelihood of active attacks on his customers’ wireless computers?

1. A. Implement Network Access Control (NAC) and require antivirus and firewall software along with OS patches.
2. B. Implement an SSL VPN in the WLAN controller that initiates after HTTPS login.
3. C. Enable station-to-station traffic blocking by the access points in the hotel.
4. D. Require EAP_FAST authentication and provide customers with a username/password on their receipt.

Correct Answer: B

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

1. A. OFDM
2. B. HT
3. C. VHT
4. D. ERP

Correct Answer: C
Reference https://www.cwnp.com/802-11ac-vht-just-the-facts/