Implementing and Configuring Cisco Identity Services Engine (SISE) — Question 202

What is the difference between how RADIUS and TACACS+ handle encryption?

Answer options

• A. RADIUS encrypts only the username and password fields, whereas TACACS+ encrypts the entire packet.
• B. RADIUS only encrypts the password field, whereas TACACS+ encrypts the entire packet.
• C. RADIUS encrypts the entire packet, whereas TACACS+ encrypts only the username and password fields.
• D. RADIUS encrypts the entire packet, whereas TACACS+ only encrypts the password field.

Correct answer: B

Explanation

The correct answer is B because RADIUS encrypts only the password field, leaving the username in clear text, while TACACS+ provides more robust security by encrypting the entire packet, offering better protection for all transmitted information. Options A, C, and D incorrectly describe the encryption capabilities of RADIUS and TACACS+, thus making them incorrect.