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4th Semester
CY-403
Unit 2 Notes

CY-403 Computer Networks Unit 2 Notes

Notes and important questions for unit 2: Data link layer protocols and medium access.

Unit 2 · Short notes Data link layer protocols and medium access Design issues and functions of the data link layer · Error detection and correction techniques · Forward error correction versus retransmission · Hamming code and CRC codes · Framing methods – fixed‑size, variable‑size, bit stuffing, byte stuffing · Data link protocols – Stop‑and‑Wait, Sliding window, PPP, SLIP, HDLC

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