Cheat sheets

CN-23Cheat sheet1 pageIn a paid pack

Traps Sheet

Common mistakes across the Computer Networks pack in one table: units and delays, switching, error detection, sliding windows, medium access and Ethernet, routing, IPv4 header and fragmentation, CIDR and NAT, TCP numbering, flow and congestion control, sockets, DNS and HTTP. Each row gives the wrong belief, the correct rule and a reminder, with a link to the sheet that explains it.

CN-24Cheat sheet1 pageIn a paid pack

Question Patterns

The recurring Computer Networks question patterns for GATE CS, one row each: the cue in the question, the first step and method, the check that can change the answer, and the solved past questions in this pack that follow the pattern (years, sets and question numbers already verified). Covers delays, switching, CRC, sliding windows, MAC, subnetting, CIDR blocks, longest-prefix match, NAT, fragmentation, routing, TCP numbering and congestion traces, sockets, DNS and HTTP.

CN-25Cheat sheet1 pageIn a paid pack

Master Last-Day Sheet

A one-page summary of the Computer Networks pack for the last day before GATE CS: delay and throughput formulas, switching, error detection, sliding-window efficiency and sequence bits, ALOHA and CSMA/CD, Ethernet limits, routing equations, IPv4 header units and fragmentation, CIDR arithmetic and longest-prefix match, NAT, TCP numbering, windows, RTO and congestion rules, socket order, DNS and HTTP counts, and a checklist of the checks that most often change an answer.