CCNAv7 ITN - Mod-6: Data Link Layer (DLL) | | DLL Frame | | Topologies | | Layer 2 Addresses | | LAN-WAN

This video discusses about the Data Link Layer concepts including the functionalities, frame format and topologies. Data must have help to move it across different media. The data link layer provides this help. As you might have guessed, this help differs based on a number of factors. This module gives you an overview of these factors, how they affect data, and the protocols designed to ensure successful delivery.

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