OSI vs TCP/IP Layer Mapping — A Cheat Sheet for the N10-009 Exam
OSI 7-layer model mapped to the TCP/IP 4-layer model with every protocol, PDU name, and exam-trap clarified. The cheat sheet that turns layer questions into …
Posts tagged: Exam-Prep
Subnetting Without a Calculator — The Magic-Number Method
Subnet any IPv4 mask in under 30 seconds without a calculator. The magic-number method explained, the /29 walkthrough, and the 256-rule trick that works on any …