// subject deep-dive
Computer Networks
Understand network layering, protocols, and the architecture of the internet.
📊 Average Weightage: 8–9 Marks (3–5 Questions)
Network Layering & Link Layer
OSI and TCP/IP models. Framing, error detection (CRC), and MAC protocols in the Link Layer.
Network Layer & Routing
IPv4 addressing, CIDR, and routing algorithms (Distance-Vector, Link-State). Includes ARP, DHCP, and ICMP.
Transport Layer
UDP and TCP features, including flow control, congestion control, and reliability mechanisms.
Application Layer
Core internet protocols like HTTP, DNS, SMTP, and FTP.
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High-Yield Topics
IP Addressing (subnetting/routing), TCP congestion control, and fundamental protocols like ARP and DHCP are critical for GATE.