GATE CS - COMPUTER NETWORKS:Introduction to Computer Networks
Mastering introduction to computer networks concepts and implementation.
Introduction to Computer Networks for GATE CS
GATE Networks mixes layer responsibilities with numericals: fragmentation, utilization, CRC, routing. Learn the stack once, then drill math in later chapters.
Layering (exam view)
OSI 7-layer names still appear in “which layer?” options. TCP/IP practical stack: Application → Transport → Network → Link → Physical.
| Layer | Typical GATE ask |
|---|---|
| Application | DNS/HTTP/SMTP ports |
| Transport | TCP vs UDP; window utilization |
| Network | IP fragmentation; DV/LS routing |
| Data link | CRC; ARQ / sliding window |
| Physical | bandwidth, latency definitions |
Delay components
Transmission , propagation, queuing, processing. Utilization formulas need the right delays — see Transport.
Next: Network Layer. Hub: GATE.
Progress