Computer Networks

29 articles in this topic

Node.js Routing and Controllers Tutorial: Build a Runnable Express API

Build a small Express users API from scratch, separate routes from controllers, and test successful and failed requests against predictable responses.

Updated 3 Sep 20266 min readComputer Networks

Network Security and Cryptography in Computer Networks: How Ciphers, Key Exchange, and TLS Actually Work

Cipher internals for computer networks: ECB vs CBC block modes, HMAC construction, square-and-multiply RSA, a Diffie-Hellman man-in-the-middle, and TLS.

Updated 2 Sep 202611 min readComputer Networks

Routing Protocols in Computer Networks: Distance Vector, Link State, RIP, OSPF, BGP with Worked Examples

Build routing from the control plane to Internet-wide policy. Compare how RIP, OSPF, and BGP carry updates, use ports and timers, react to failure, and create common GATE CS traps.

Updated 31 Aug 20265 min readComputer Networks

IP Addressing in Computer Networks: Classes, Subnetting, CIDR, and Worked Examples for GATE

Build IP addressing from its 32-bit foundation through classful ranges, subnetting, VLSM, CIDR aggregation, and longest prefix match with checked examples.

Updated 29 Aug 20266 min readComputer Networks

Computer Networks for GATE: Syllabus Areas, Weightage Pattern and How to Prepare

Learn what CN covers in GATE, where its questions tend to come from, and how to sequence the subject. Includes verified subnetting and stop-and-wait examples.

Updated 29 Aug 20264 min readComputer Networks

Transport Layer Services in Computer Networks: TCP, UDP and Reliability with Worked Examples

Understand process-to-process delivery, compare TCP with UDP, and follow one connection through setup, loss recovery, flow control and closure.

Updated 26 Aug 20265 min readComputer Networks

CSMA/CD and ALOHA for GATE: Efficiency and Minimum Frame Size Numericals Solved

Separate one-way delay from round-trip delay, then solve the standard CSMA/CD frame-size and ALOHA throughput numericals step by step.

Updated 24 Aug 20265 min readComputer Networks

IPv4 and Network Layer Protocols: Complete Guide with Worked Examples for GATE CS

Build a clear picture of IPv4, its support protocols and the header calculations that matter in GATE CS. Includes a complete fragmentation example.

Updated 23 Aug 20266 min readComputer Networks

Cloud Computing and IoT in Computer Networks: Complete Guide with Worked Examples

Learn how cloud models, IoT protocols, network throughput, messaging overhead, and edge latency fit together through three solved examples.

Updated 21 Aug 20265 min readComputer Networks

Mobile Technology in Computer Networks: Cellular Concepts, GSM, CDMA and Handoff with Worked Examples

Build a clear picture of cellular networks, GSM roles, CDMA decoding, handoff and Mobile IP, then test it with two fully worked numericals.

Updated 19 Aug 20266 min readComputer Networks

Introduction to Computer Networks: Layers, Topologies, Switching and Delay Formulas with Worked Examples

Build the Computer Networks foundation that later CN topics assume, including layer models, topology maths, switching choices and an end-to-end delay calculation.

Updated 17 Aug 20266 min readComputer Networks

Ethernet in the Data Link Layer: Frame Format, CSMA/CD, and Worked GATE Examples

Build Ethernet from its frame fields upward, then solve collision-window, back-off, efficiency, and domain-counting problems with the reasoning shown.

Updated 15 Aug 20266 min readComputer Networks