How does TACACS+ facilitate secure connections for user access to network routers?

Question

Options

• AThe user provides a password over a secure connection to the TACACS+ server for
• BThe network access server communicates securely with a TACACS+ daemon to authenticate the
• CThe network access server communicates securely with the router via the TACACS+ protocol to
• DThe user's end device uses CHAP to securely query the network access server to authenticate

• A
  6% (3)
• B
  88% (42)
• C
  4% (2)
• D
  2% (1)

Explanation

TACACS+ Overview: TACACS+ (Terminal Access Controller Access-Control System Plus) is a protocol that provides centralized authentication, authorization, and accounting for network devices. It is designed to securely communicate between the network access server (NAS) and the TACACS+ daemon (authentication server). Secure Authentication Process: When a user attempts to access a network router, the NAS (e.g., router or switch) communicates securely with the TACACS+ server using the TACACS+ protocol. TACACS+ encrypts the entire payload of the communication, ensuring secure transmission of credentials and authorization details. TACACS+ separates the processes of authentication, authorization, and accounting, providing granular control over user access. The NAS delegates authentication and authorization responsibilities to the TACACS+ server, enhancing security and simplifying management.

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