Computer Networks Unit 2 [2024 PATTERN- SEM 5]

About this PDF

📘 Computer Networks – Unit 2: Data Link Layer Complete, well-structured and exam-oriented notes covering the important syllabus topics: • Data Link Layer Services & Design Issues • Framing & Addressing • Error Control, Flow Control & Reliable Data Transfer • Error Detection & Correction – Parity, Checksum & CRC • Elementary & Stop-and-Wait Protocols • Sliding Window Protocols & Pipelining • Go-Back-N & Selective Repeat • Packet over SONET • Data Link Layer Security & Secure Framing • Error Detection vs Data Integrity • Link-Layer Security Basics ✨ SPPU exam-oriented notes with clear explanations, organized concepts and easy-to-write theory for effective preparation, revision and exam writing.

Topics covered

Headings from inside this PDF (50 pages in total).

1. Unit–II: Data Link Layer
2. 1. Unacknowledged Connectionless Service
3. 2. Acknowledged Connectionless Service
4. 3. Acknowledged Connection-Oriented Service
5. 6. The communication can be understood in three phases:
6. 1. Framing
7. 2. Physical Addressing
8. 3. Error Control
9. 4. Flow Control
10. 5. Reliable Delivery

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50 pages

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English

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862 KB

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Disha Singh

Published

24 October 2026