Implementing Cisco Secure Access Solutions (SISAS, legacy) — Question 25

Which three statements describe differences between TACACS+ and RADIUS? (Choose three.)

Answer options

• A. RADIUS encrypts the entire packet, while TACACS+ encrypts only the password.
• B. TACACS+ encrypts the entire packet, while RADIUS encrypts only the password.
• C. RADIUS uses TCP, while TACACS+ uses UDP.
• D. TACACS+ uses TCP, while RADIUS uses UDP.
• E. RADIUS uses ports 1812 and 1813, while TACACS+ uses port 49.
• F. TACACS+ uses ports 1812 and 1813, while RADIUS uses port 49

Correct answer: B, D, E

Explanation

The correct answer is B, D, and E because TACACS+ encrypts the full packet while RADIUS only encrypts the password, and TACACS+ uses TCP while RADIUS uses UDP. Option A is incorrect as it wrongly attributes packet encryption to RADIUS, and options C and F are also incorrect regarding the transport protocols and port assignments.