CCNA: Cisco Certified Network Associate — Question 218

Which type of wireless encryption is used for WPA2 in preshared key mode?

Answer options

• A. AES-128
• B. TKIP with RC4
• C. AES-256
• D. RC4

Correct answer: A

Explanation

The correct answer is A, AES-128, which is the encryption standard employed by WPA2 in preshared key mode. Options B and D refer to older encryption methods that are not secure enough for WPA2, while option C, AES-256, is a stronger standard but not the one specifically used in this context.