Joe, a security administrator, needs to extend the organization’s remote access functionality to be used by staff while traveling. Joe needs to maintain separate access control functionalities for internal, external, and VOIP services. Which of the following represents the BEST access technology for Joe to use?
A. RADIUS
B. TACACS+
C. Diameter
D. Kerberos
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https://www.cisco.com/c/dam/en/us/products/collateral/security/secure-access-control-server-windows/prod_white_paper0900aecd80737943.pdf
TACACS+ is an AAA protocol developed by Cisco. TACACS+ separates the authentication, authorization, and accounting steps.
It is B
It is B, because TACACS+ encrypts the whole process