Network+ N10-009

Learn Network+
one objective at a time.

Guided lessons that teach the concepts behind the exam objectives — explanations, diagrams, tables and drills — so the practice questions test recall rather than introduce the topic.

  1. 1.1The OSI ModelThe seven-layer reference model, what each layer is responsible for, how data is encapsulated on the way down and decapsulated on the way up, and how the model maps onto the TCP/IP stack you actually troubleshoot.12 modules · about 35 minutes

More lessons are being written. In the meantime, the practice question bank covers all 27 objective modules, and the exam simulator is free and full length.