CWT WLAN Installation & Configuration 5

Question 1

Which protocol does a CAPWAP-based access point use to communicate with a Wireless LAN Controller?

Accepted Answer

UDP ports 5246 (control) and 5247 (data)

Answer

CAPWAP uses UDP port 5246 for the control channel and UDP port 5247 for the data channel between AP and WLC.

Question 2

What is the purpose of 802.11k in a wireless network?

Accepted Answer

Provide neighbor reports to help clients make better roaming decisions

Answer

802.11k (Radio Resource Management) enables APs to provide clients with neighbor AP reports, improving roaming decisions and efficiency.

Question 3

An AP is drawing power from an 802.3af PoE switch port but fails to power on. What is the most likely cause?

Accepted Answer

The AP requires 802.3at (PoE+) power and exceeds the 802.3af 15.4W budget

Answer

802.3af provides up to 15.4W, while higher-end APs require 802.3at (PoE+) which provides up to 30W; a mismatch prevents the AP from booting.

Question 4

Which Wi-Fi Alliance certification program replaced WPA2 and introduced SAE (Simultaneous Authentication of Equals)?

Accepted Answer

WPA3

Answer

WPA3 replaced WPA2 and introduced SAE, which provides stronger password-based authentication and forward secrecy.

Question 5

A wireless network is experiencing slow performance because many legacy 802.11b clients are connected. What feature can the administrator enable to improve performance for newer clients?

Accepted Answer

Enable minimum basic rate and disable lower data rates like 1 and 2 Mbps

Answer

Disabling low legacy data rates (1, 2, 5.5 Mbps) forces slower clients off the network or to connect less frequently, reducing airtime overhead.

(CWT) Certified Wireless Technician Practice Test

(CWT) Certified Wireless Technician Practice Test

CWT WLAN Installation & Configuration 5