Which feature of AnyConnect provides better access security across wired and wireless connections with 802.1X?

Trusted Network Detection determines whether the endpoint is on a trusted network to trigger or bypass the VPN tunnel, but does not perform 802.1X authentication.

Secure Layer 2 Network Access via the AnyConnect Network Access Manager manages 802.1X supplicant authentication for both wired Ethernet and Wi-Fi interfaces, enforcing identity-based access at the data link layer before any IP connectivity is established.

Flexible AAA Options refers to broad authentication framework support in products like Cisco ISE and is not a specific AnyConnect module tied to 802.1X.

AnyConnect with AMP provides endpoint malware protection through the Advanced Malware Protection module and is entirely unrelated to 802.1X network access control.