CWT Security Protocols & Network Optimization 2

Question 1

Which 802.11 amendment introduced the Robust Security Network (RSN) framework?

Accepted Answer

802.11i

Answer

802.11i defined the RSN framework, mandating CCMP/AES encryption and replacing the flawed WEP standard.

Question 2

A wireless technician needs to prevent rogue APs from associating with the corporate WLAN. Which feature should be enabled on the WLAN controller?

Accepted Answer

Rogue AP containment

Answer

Rogue AP containment actively de-authenticates clients that attempt to connect to unauthorized access points.

Question 3

What is the purpose of the 4-Way Handshake in WPA2?

Accepted Answer

To derive and verify the Pairwise Transient Key (PTK)

Answer

The 4-Way Handshake uses the PMK to mutually derive and confirm the PTK used for unicast frame encryption.

Question 4

Which QoS access category provides the highest priority for time-sensitive traffic like VoIP?

Accepted Answer

AC_VO (Voice)

Answer

AC_VO has the shortest AIFSN and TXOP values, giving voice traffic the lowest contention window and fastest channel access.

Question 5

An enterprise WLAN uses 802.1X. A client presents credentials to the AP, which forwards them to an authentication server. What role does the AP play in this architecture?

Accepted Answer

Authenticator

Answer

In 802.1X, the AP acts as the Authenticator, relaying EAP messages between the supplicant (client) and authentication server.

(CWT) Certified Wireless Technician Practice Test

(CWT) Certified Wireless Technician Practice Test

CWT Security Protocols & Network Optimization 2