What is a difference between RADIUS and TACACS+?

What is a difference between RADIUS and TACACS+?
A . TACACS+ encrypts only password information and RADIUS encrypts the entire payload
B . RADIUS logs all commands that are entered by the administrator, but TACACS+ logs only start, stop, and interim commands
C . RADIUS is most appropriate for dial authentication, but TACACS+ can be used for multiple types of authentication
D . TACACS+ separates authentication and authorization, and RADIUS merges them

View Answer

Answer: D