Basics of Computer Networks for UGC NET

Preparing for competitive exams in computer science requires a rock-solid understanding of how data moves across the globe. This text-based course breaks down complex networking theories into clear, digestible explanations tailored for exam candidates. You will transition from basic definitions to analyzing how modern network protocols operate in the real world. What you'll learn: Understand core networking models, including the detailed layers of the OSI and TCP/IP reference models; Analyze physical and data link layer functions, including error detection, correction, and media access control; Master IP addressing, subnetting, routing algorithms, and modern CIDR notation; Explore transport layer protocols, focusing on the mechanics of TCP three-way handshakes and UDP; Examine application layer protocols such as DNS, HTTP, and SMTP, alongside modern network security basics; Practice solving exam-style theoretical and numerical problems to build test-taking confidence. The course begins with foundational terminology and network topologies, then systematically guides you through each layer of the network stack with practical examples and clear diagrams represented in text format. This course is designed specifically for beginners and exam aspirants preparing for the UGC NET in Computer Science, with no prior advanced networking experience required. Start reading today to build a competitive edge in your exam preparation.