CompTIAUpdated 2026Last reviewed May 19, 2026

N10-009 Practice Test

Master Networking. Pass Network+ on Day One.

500 scenario-based practice questions covering all 5 Network+ domains — concepts, implementation, operations, security, and troubleshooting. Built by certified network professionals.

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The CompTIA Network+ (N10-009) is a professional-level CompTIA certification. The exam has 90 questions, runs 90 minutes, costs $358, and requires a passing score of 720/900. CertSharp provides 500 exam-style N10-009 practice questions — 30 free with no signup — each with a detailed explanation.

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Updated for 2026 exam blueprint

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Exam Overview

N10-009 Exam Details

Know exactly what to expect on exam day

Questions

Duration

90 minutes

Passing Score

720/900

Exam Cost

$358

Coverage

Exam Domains Covered

Every question maps to an official N10-009 domain

Networking Concepts (23%)

Network Implementation (19%)

Network Operations (17%)

Network Security (20%)

Network Troubleshooting (21%)

Why CertSharp

Built for Exam Day, Not Just Study Time

Study guides teach concepts. We prepare you for the actual N10-009 exam.

Troubleshooting scenarios mirror real exam performance-based questions — not just definition recall

Every explanation connects theory to practice: why a subnet mask breaks a network, not just what it is

Network security questions calibrated to the 20% domain weight in the actual N10-009 blueprint

Updated for N10-009 — cloud networking, Zero Trust, and Wi-Fi 6/6E included

Sample Question

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Harder than the real exam, with detailed explanations

Sample — N10-009

A network administrator receives reports that users in one VLAN can access resources in another VLAN without going through the firewall. Which device configuration is most likely causing this?

The access switch has been configured with a native VLAN mismatch

The router-on-a-stick configuration is missing a subinterface

The Layer 3 switch has inter-VLAN routing enabled without ACLs

The DHCP server is assigning IPs from the wrong scope

Explanation

When a Layer 3 switch handles inter-VLAN routing, traffic flows directly between VLANs at line speed — bypassing an external firewall. Without ACLs on the SVIs, all VLAN-to-VLAN traffic is unrestricted. A native VLAN mismatch causes trunk link problems. A missing subinterface blocks routing. DHCP scope issues affect IP assignment, not routing policy.

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Official Certification Resources

Our practice questions align with official exam objectives. Study official materials first, then use CertSharp to test your readiness.

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FAQ

N10-009 Frequently Asked Questions

Everything you need to know about CompTIA Network+

What is the CompTIA Network+ N10-009 exam?

N10-009 is the current CompTIA Network+ exam. It validates vendor-neutral networking covering concepts, implementation, operations, security, and troubleshooting. Cost: $358, up to 90 questions, passing score 720/900.

How hard is CompTIA Network+?

Network+ is intermediate-level. Candidates with networking experience or A+ foundation typically pass in 4-6 weeks. Troubleshooting and security are most challenging — they require application of concepts, not just memorization.

Is Network+ worth getting in 2026?

Yes. Network+ is one of the most respected vendor-neutral networking credentials and is required for many IT roles. It is DoD 8570 compliant for government and defense positions.

What is new in Network+ N10-009 vs N10-008?

N10-009 adds greater emphasis on cloud networking, Zero Trust architecture, modern wireless standards (Wi-Fi 6/6E), and network automation. Domain weights have been adjusted to reflect current enterprise priorities.

Do I need A+ before Network+?

CompTIA recommends A+ first but it is not required. If you have real-world networking experience or a strong self-study background in TCP/IP and subnetting, you can prepare for Network+ directly.

What topics are on Network+ N10-009?

Key topics: TCP/IP fundamentals, subnetting and CIDR, routing protocols (OSPF, BGP), VLANs and STP, wireless networking, network security (firewalls, IDS/IPS, Zero Trust), cloud networking, troubleshooting methodology, and network monitoring.

How many questions on Network+?

The N10-009 exam has up to 90 questions including multiple-choice, multiple-select, and performance-based questions. Time limit: 90 minutes. Passing score: 720/900.

How long to study for CompTIA Network+?

Most candidates study 4-8 weeks. Focus on subnetting (practice until automatic), troubleshooting methodology, and the network security domain — these have the most impact on your score.

From the Blog

Study Guides & Exam Resources

CompTIA Network+ (N10-009) Exam Guide 2026 — Cost, Format, Passing Score

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CompTIA Network+ (N10-009) Study Plan 2026 — 8 Weeks to Pass

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15 CompTIA Network+ Practice Questions with Explanations

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CompTIA Network+ Cheat Sheet 2026

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Is CompTIA Network+ Worth It in 2026?

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How to Pass CompTIA Network+ on the First Try

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CompTIA Network+ vs Cisco CCNA — Which First?

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Subnetting Explained — CIDR, VLSM, and Fast Subnet Math

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