Implementing and Configuring Cisco Identity Services Engine (SISE) — Question 335

An administrator is configuring RADIUS on a Cisco switch with a key set to Cisc407294634 but is receiving the error `Authentication failed: 22040 Wrong password or invalid shared secret.`
What must be done to address this issue?

Answer options

• A. Add the network device as a NAD inside Cisco ISE using the existing key.
• B. Configure the key on the Cisco ISE instead of the Cisco switch.
• C. Validate that the key is correct on both the Cisco switch as well as Cisco ISE.
• D. Use a key that is between eight and ten characters.

Correct answer: C

Explanation

The correct answer is C because the error suggests a mismatch in the shared secret between the Cisco switch and Cisco ISE. Ensuring that the key is identical on both devices will resolve the authentication issue. Options A and B do not address the key mismatch, and option D is irrelevant since the key length is not the problem here.