Question 307 of 367 from exam 200-301-CCNA: Implementing and Administering Cisco Solutions

Question 307 of 367 from exam 200-301-CCNA: Implementing and Administering Cisco Solutions


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



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A. B. C. D.


We can see in this picture we have to type 64 hexadecimal characters (256 bit) for the WPA2 passphrase so we can deduce the encryption is AES-256, not AES- 128.

Profile Management 2x)
General Secutly | Advanced |
Set Secuty Opbone
(© \WPAMWPAZ Passphease
8 octine wPA/WPAZ Pre-shared Key Ux!
en Enter a WPA/WPA2 passphrase (8 to 63 ASCII or 64 hexadecimal characters)
Ok Caneel
ok Caneel

The correct answer is A. AES-128.

Wireless encryption is used to secure wireless networks and protect data transmissions from unauthorized access. Wi-Fi Protected Access 2 (WPA2) is the current standard for wireless security and provides two modes of operation: Enterprise mode and Personal or Pre-Shared Key (PSK) mode.

In PSK mode, all users share a common password, called a pre-shared key or passphrase, which is used to generate encryption keys for each user session. PSK mode is more commonly used in home and small business networks.

WPA2-PSK mode supports two encryption methods: Temporal Key Integrity Protocol (TKIP) and Advanced Encryption Standard (AES). TKIP was used in the previous WPA standard and was designed as a temporary solution to address the weaknesses of Wired Equivalent Privacy (WEP). TKIP uses the RC4 encryption algorithm and provides improved security over WEP, but it is not as secure as AES.

AES is a block cipher encryption algorithm that uses keys of 128, 192, or 256 bits. It is the current standard for encryption and is more secure than TKIP. AES-128 is the recommended encryption method for WPA2-PSK mode, as it provides strong security and is widely supported by devices.

Therefore, the correct answer to the question is A. AES-128.