Certified Network Defender (CND) — Question 49

As a network administrator, you have implemented WPA2 encryption in your corporate wireless network. The WPA2's __________ integrity check mechanism provides security against a replay attack.

Answer options

• A. CBC-MAC
• B. CRC-MAC
• C. CBC-32
• D. CRC-32

Correct answer: A

Explanation

The correct answer is A, CBC-MAC, which is specifically designed to provide message integrity and authenticity, thus preventing replay attacks. The other options, CRC-MAC, CBC-32, and CRC-32, do not offer the same level of security against these types of attacks, as they are not tailored for integrity checking in the same way as CBC-MAC.