Lec-21: Data link layer in computer Networks and its Responsibilities

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In this video, Varun sir has explained Data Link layer.
Data link layer is the second layer in the OSI (Open Systems Interconnection) model and the TCP/IP protocol suite. It is responsible for breaking the data received from the network layer into smaller units called frames and transmitting them over the physical medium.

0:00 - Introduction
0:57 - Hop to Hop
5:46 - Flow Control
9:04 - Error Control
12:19 - Access Control
15:18 - MAC address
16:41 - Frames

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