Data Link Layer: Design and Protocols

The duties of the Data Link Layer include managing the LLC and MAC sublayers, implementing error detection and correction, controlling data link protocols, handling multiple access in LANs, managing wireless LANs, and facilitating switching.

The different types of errors that can occur during data transmission are single-bit errors and burst errors.

A burst error means that 2 or more bits in the data unit have changed. An example of a burst error of length 5 would be when 5 consecutive bits in the data unit are altered.

<p>The methods used for error detection in the Data Link Layer include parity check, cyclic redundancy check (CRC), and checksum.</p> Signup and view all the answers

<p>Error detection uses the concept of redundancy by adding extra bits for detecting errors at the destination. The redundancy detection methods include the even-parity concept and techniques like parity check, CRC, and checksum.</p> Signup and view all the answers