CompTIA certification

CompTIA Network+ (N10-009) Practice Questions & Study Guide

Vendor-neutral networking fundamentals — a strong foundation for CCNA, Security+, and any networking or SOC role.

Start Network+ practice free Create a free account

What's included

42
concept lessons
197
practice questions
5
exam domains

Every Network+ question includes a worked explanation and hints. Question formats mirror the real exam: multiple choice, multiple select, short answer, drag-and-drop matching and command-line simulation. A full timed final exam reports per-domain analytics so you know exactly where you stand before test day.

A sample Network+ lesson

The OSI Reference Model

Overview

The Open Systems Interconnection (OSI) model is a conceptual framework developed by ISO that divides network communication into seven discrete layers. Each layer has a specific role, communicates with the layers directly above and below it, and adds or removes a protocol header as data moves down (encapsulation) or up (de-encapsulation) the stack.

Understanding the OSI model is essential for troubleshooting because problems can be isolated to a specific layer. A device that powers on but cannot ping any host likely has a Layer 1 or Layer 2 problem; a device that can ping by IP but not by hostname has a Layer 7 (DNS) problem.

This is one of 42 concept lessons in the full Network+ track.

Exam facts

  • Exam codeN10-009
  • VendorCompTIA
  • FormatUp to 90 questions · 90 minutes
  • Passing score720 / 900
  • Exam cost$369 USD
  • Renewal3 years (renew with CEUs)

Pricing

$9 one-time
single Network+ pass
$10
/ month — all certifications
$100
/ year — all certifications
$249
lifetime (founders)

Your first foundational certification is free when you sign up — no card required.

Network+ FAQ

How much does the CompTIA Network+ exam cost?
The official CompTIA N10-009 exam voucher is $369 USD. CyberStudy is separate, affordable practice and is not the exam voucher.
How many questions are on the Network+ exam?
The N10-009 exam is Up to 90 questions · 90 minutes.
What score do I need to pass Network+?
The passing score is 720 / 900.
How long is Network+ valid?
CompTIA Network+ is valid for 3 years (renew with ceus).
How much Network+ practice does CyberStudy include?
197 exam-style practice questions across every domain plus a full timed mock exam with analytics, and 42 concept lessons.
Start studying Network+