CompTIA Network+ (N10-009): Full Exam Prep
Everything you need to pass the CompTIA Network+ N10-009 exam, from OSI model basics and subnetting math to routing, security, and troubleshooting, organized the way the exam actually tests it.
About this course
Most people who fail the Network+ don't fail because the material is too hard. They fail because they studied the wrong things in the wrong order, or they understood concepts in isolation but couldn't apply them when questions mixed domains together. This course is built around how the exam actually works, not just a list of topics to memorize.
You'll start with the foundational models and protocols, then move through IP addressing and subnetting (the part most candidates underestimate), hardware and wireless standards, routing and switching, and into network security and operations. Each unit builds on the one before it, so by the time you reach troubleshooting, you're not learning isolated commands; you're connecting symptoms to causes across the whole network stack. The final unit is a full mixed-domain review designed to simulate what test day actually feels like.
The N10-009 is a hands-on exam. It includes performance-based questions that ask you to configure, diagnose, or choose between options in a scenario, not just pick a definition. This course emphasizes that kind of applied thinking throughout, so you're not just ready to pass the exam. You're ready to do the work the certification is supposed to prove you can do.
Details
Skills you'll learn
Subnetting and IP Addressing
Calculate subnets, host ranges, and CIDR notation quickly enough to answer addressing questions under exam time pressure.
Network Device and Protocol Knowledge
Identify what each network device does, which protocols run on which ports, and when to use TCP vs. UDP in a given scenario.
Routing and Switching Concepts
Explain how VLANs, spanning tree, static routing, and dynamic routing protocols direct and segment traffic across a network.
Security and Threat Identification
Recognize common network attacks, apply the CIA triad, and describe the controls used to defend against them.
Structured Troubleshooting
Work through connectivity, addressing, and performance problems using CompTIA's troubleshooting methodology and the right diagnostic tools.
Syllabus
6 units • 12 lessons • 2 projects • 6 assessments
Learning activities
Every lesson gives you several ways to learn.
Frequently asked questions
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