An administrator is configuring TACACS+ on a Cisco switch but cannot authenticate users with Cisco ISE. The configuration contains the correct key of Cisc039712287. but the switch is not receiving a response from the Cisco ISE instance.
What must be done to validate the AAA configuration and identify the problem with the TACACS+ servers?
A . Check for server reachability using the test aaa group tacacs+ admin <key> legacy command.
B. Test the user account on the server using the test aaa group radius server CUCS user admin pass <key> legacy command.
C. Validate that the key value is correct using the test aaa authentication admin <key> legacy command.
D. Conrm the authorization policies are correct using the test aaa authorization admin drop legacy command.
Answer: A
Explanation:
https://medium.com/training-course-ccna-security-210-260/ccna-security-part-3-implementing-aaa-in-cisco-ios-4b13ab285f51
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