Final answer:
The question focuses on the encryption standards used by WPA2, which is AES with 128-bit keys, whereas WPA used TKIP. AES is a more secure protocol adopted for protecting classified information.
Step-by-step explanation:
The question pertains to the differences in encryption methods used by different Wi-Fi Protected Access protocols. The Wi-Fi Protected Access 2 (WPA2) protocol indeed utilizes the Advanced Encryption Standard (AES) cipher with a key size of 128 bits.
This is a step up from the original WPA protocol which typically used the Temporal Key Integrity Protocol (TKIP) encryption. AES is known for its higher security level and is a widely adopted encryption standard used by the U.S. government, among others, to protect classified information.