CCNP Security Question of the Week: Authenticating ASDM Users

Answer: D.

The http keyword authenticates the ASDM client that accesses the security appliance using HTTPS. You only need to configure HTTP authentication if you want to use a RADIUS or TACACS+ server. By default, ASDM uses the local database for authentication even if you do not configure this command.

If you use a TACACS+ or RADIUS server group for authentication, you can configure the security appliance to use the local database as a fallback method if the AAA server is unavailable. Specify the server group name followed by LOCAL (LOCAL is case sensitive). We recommend that you use the same username and password in the local database as the AAA server because the security appliance prompt does not give any indication which method is being used.

You can alternatively use the local database as your main method of authentication (with no fallback) by entering LOCAL alone.