Which of the following services are used to support authentication services for several local devices from a central location without the use of tokens?

The correct answer is A. TACACS+. TACACS+ (Terminal Access Controller Access-Control System Plus) is a centralized AAA (Authentication, Authorization, and Accounting) protocol developed by Cisco. It allows network devices (routers, switches, servers) to offload authentication to a central TACACS+ server using…

Security architecture

Question

Options

ATACACS+
BSmartcards
CBiometrics
DKerberos

How the community answered

(24 responses)

A
92% (22)
B
4% (1)
D
4% (1)

Explanation

TACACS+ (Terminal Access Controller Access-Control System Plus) is a centralized AAA (Authentication, Authorization, and Accounting) protocol developed by Cisco. It allows network devices (routers, switches, servers) to offload authentication to a central TACACS+ server using username/password credentials - no tokens required. Smartcards (B) and biometrics (C) are token-based or physical authentication factors, not centralized authentication services. Kerberos (D) is a centralized authentication protocol but relies on tickets (which function similarly to tokens) and is primarily used for domain-based single sign-on rather than device authentication in the way TACACS+ is used for network infrastructure.

Topics

#TACACS+#AAA#centralized authentication#network access control

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