Cisco Certified Network Associate (CCNA) 2025 – 400 Free Practice Questions to Pass the Exam

To determine the Data Link Connection Identifier (DLCI) used for a specific host packet, the command that provides the most relevant information is the one that reveals the Frame Relay mapping for the DLCIs. The command to show the Frame Relay map provides a direct view of the mappings between the DLCIs and the associated network layer addresses, which is essential for understanding how the data packets are routed through the Frame Relay network.

The command that displays the running configuration can also be useful as it can show how interfaces and mappings are set up, but the most specific and pertinent information regarding DLCIs specifically is contained within the Frame Relay map command. Therefore, using the show frame-relay map command allows you to see the direct association of DLCIs with corresponding hosts, thereby effectively answering the question.

While the running config can provide some context, it does not specifically give the mapping details like the Frame Relay map command does. Thus, in this case, viewing both the Frame Relay map and the running configuration collectively facilitates a comprehensive understanding, which leads to the conclusion that both these commands can be appropriate for determining the DLCI in question.