Which two authentication protocols are supported by RADIUS but not by TACACS+? (Choose two.)

MSCHAPv1, an older Microsoft challenge-handshake authentication protocol, is generally supported by both RADIUS and TACACS+, or at least simpler CHAP variants are.

EAP (Extensible Authentication Protocol) is a flexible framework that allows multiple authentication methods to be used over it, and it is a core protocol supported by RADIUS for robust client authentication, which TACACS+ does not support.

MSCHAPv2 is a secure, challenge-response authentication protocol widely used within EAP methods (like PEAP, EAP-TTLS) and is fully supported by RADIUS, whereas TACACS+ lacks support for this protocol.