CompTIA Security+ (SY0-501) — Question 357

A systems administrator is configuring a new network switch for TACACS+ management and authentication.
Which of the following must be configured to provide authentication between the switch and the TACACS+ server?

Answer options

• A. 802.1X
• B. SSH
• C. Shared secret
• D. SNMPv3
• E. CHAP

Correct answer: C

Explanation

The correct answer is C, as a shared secret is required to establish a secure authentication channel between the switch and the TACACS+ server. Options A (802.1X), B (SSH), D (SNMPv3), and E (CHAP) do not specifically address the authentication mechanism needed for TACACS+ communication.