CompTIA Network+ Exam Review

Answer - A - The router should get only one LMI message from the DCE.

Key Takeaway: The Local Management Interface, or LMI, messages are sent between the DCE (typically the service provider) and the DTE (the Cisco router). LMI Status messages serve as keep-alives for a frame connection. If these keep-alives are not continually received by both the DCE and the DTE, the frame connection will drop. The LMI also indicates the PVC status to the router, reflected as either active or inactive. In an LMI Autosense, the DTE or the Cisco router will send out three LMI messages, one of each type (Cisco, ansi, and q933a). The DCE will return only one and the DTE will only send that type from then on.