What is an advantage of using EAP-TLS over EAP-MS-CHAPv2 for client authentication?

EAP-TLS primarily uses certificates, not usernames and passwords, for authentication, making this statement incorrect.

Both EAP-TLS and EAP-MS-CHAPv2 aim to secure credential exchange, but EAP-TLS does so more robustly through certificate-based mutual authentication and stronger encryption.

EAP-TLS (Extensible Authentication Protocol-Transport Layer Security) performs mutual authentication using digital certificates on both the client (device) and the authentication server. This certificate-based authentication is cryptographically strong and eliminates reliance on usernames and passwords, which are susceptible to brute-force or phishing attacks, making it more secure than EAP-MS-CHAPv2.

EAP-TLS is a single, strong authentication method using certificates, not multiple forms of authentication; EAP-MS-CHAPv2 also uses a single method (username/password challenge-response).