What security function does WPA2 provide compared to WPA?

WPA2 provides greater encryption strength compared to WPA primarily by implementing the Advanced Encryption Standard (AES) for securing wireless networks. AES is a more robust encryption algorithm than the Temporal Key Integrity Protocol (TKIP), which is used by WPA.

This enhancement in encryption strength increases the overall security of wireless communication, making WPA2 more resilient against attacks. AES offers a longer key length and stronger encryption techniques, which contribute to its effectiveness in safeguarding data transmitted over wireless networks. As a result, WPA2 is widely recommended for protecting sensitive information in environments where security is a priority.

The other options don't accurately represent the enhancements made in WPA2 over WPA, particularly in the context of its encryption capabilities.