This allows you to configure the router remotely using a modem. This port must be configured before you can use it.

• A. Auxiliary Port
• B. Management Port
• C. Console Port
• D. Ethernet Port

Answer: (A)

Remote router management over a modem uses the Auxiliary Port. It’s built for dial-in access, allowing an administrator to connect through a modem and manage the device even when the main network isn’t reachable. Before you can use it, you configure the port on the router—setting up the modem connection, authentication credentials, and any dialer settings—so inbound remote access works. The Console Port is for local, direct serial access; the Ethernet Port is the standard data/network path; a dedicated Management Port handles out-of-band management over Ethernet. For remote configuration via a modem, the Auxiliary Port is the one designed for that purpose.