Which two protocols are commonly used for server-based AAA authentication?

Which two protocols are commonly used for server-based AAA authentication?

• A. TACACS+ and RADIUS
• B. UDP and TCP
• C. SSH and FTP
• D. Telnet and HTTPS

Answer: (A)

The correct choice identifies TACACS+ and RADIUS as the two protocols commonly used for server-based AAA (Authentication, Authorization, and Accounting) authentication. TACACS+ (Terminal Access Controller Access Control System Plus) and RADIUS (Remote Authentication Dial-In User Service) are both protocols designed to centralize authentication processes, enabling administrators to manage access control through a centralized server. They provide secure transmission of user credentials and enforce safe password policies. TACACS+ is particularly known for its ability to provide granularity in authorization and accounting features, making it a favored option in many enterprise environments. RADIUS, on the other hand, is widely implemented for network access and is supported by many networking devices. Given their roles, both TACACS+ and RADIUS are integral to ensuring secure access to network resources, making them the appropriate response to this question about AAA authentication protocols.

The correct choice identifies TACACS+ and RADIUS as the two protocols commonly used for server-based AAA (Authentication, Authorization, and Accounting) authentication.

TACACS+ (Terminal Access Controller Access Control System Plus) and RADIUS (Remote Authentication Dial-In User Service) are both protocols designed to centralize authentication processes, enabling administrators to manage access control through a centralized server. They provide secure transmission of user credentials and enforce safe password policies. TACACS+ is particularly known for its ability to provide granularity in authorization and accounting features, making it a favored option in many enterprise environments. RADIUS, on the other hand, is widely implemented for network access and is supported by many networking devices.

Given their roles, both TACACS+ and RADIUS are integral to ensuring secure access to network resources, making them the appropriate response to this question about AAA authentication protocols.