Explanation
WPA2 is the acronym for Wi-Fi Protected Access 2, which is a security standard for wireless networks that was introduced in 2004 as an improvement over the original WPA standard. WPA2 is based on the IEEE
802.11i amendment, which specifies the use of CCMP/AES (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol/Advanced Encryption Standard) as the mandatory encryption and authentication method for WLANs. WPA2 also supports optional methods such as TKIP (Temporal Key Integrity Protocol), which is backward compatible with WEP (Wired Equivalent Privacy), and EAP (Extensible Authentication Protocol), which allows for various types of authentication mechanisms
. References: [CWNA-109 Study Guide], Chapter 10: Wireless LAN Security, page 403; [CWNA-108 Study Guide], Chapter 10: Wireless LAN Security, page 393; [CWNP website], CWSP Certification.