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An administrator wants to use LDAP, TACACS+, and Kerberos as external authentication services for authenticating users. What should the administrator be aware of regarding the authentication sequence, based on the Authentication profiles in the order Kerberos, LDAP, and TACACS+?
Correct Answer: D
When user or administrative access is configured, one or more authentication methods must be specified. A user or administrator definition typically requires an Authentication Profile that specifies the desired authentication method. When more than one method is desired, you can instead use an Authentication Sequence, which is a list of Authentication Profiles. The first profile will be accessed. If it is not available, the next option will be tried. An Authentication Profile specifies a single Server Profile. A Server Profile contains specific configuration and access information that is necessary to reach the external authentication service.