CompTIA certification practice
Practise CompTIA Network+ N10-009 across all 5 official exam domains — Networking Concepts, Network Implementation, Network Operations, Network Security, and more — with original exam-style questions, full explanations, and wrong-answer analysis. CompTIA exams reward broad practical understanding. Courseiva helps you practise IT support, networking, security and troubleshooting concepts with realistic questions and clear answer explanations.
Ways to study N10-009
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
New here? Start with this
Start with a 25-question practice test
Covers all 5 domains · takes ~5 min · no account needed · shows your weak areas immediately
Key facts for the CompTIA Network+ N10-009 exam.
Exam cost
$369 USD / ~£300
Duration
90 minutes
Question count
Maximum 90 questions
Passing score
720 / 900
Validity
3 years
Delivered by
Pearson VUE
Online proctored
Yes — available
Retake policy
No wait after first attempt; 14 days after second failure
Question formats
CompTIA Network+ (N10-009) validates networking skills across infrastructure, networking concepts, network operations, security, and troubleshooting. It is vendor-neutral — covering concepts applicable to any manufacturer's equipment. Network+ is DoD 8570 / 8140 approved and widely accepted in both enterprise and government IT.
Official prerequisite
None
Recommended experience
CompTIA A+ and 9–12 months of networking experience
A+ level knowledge or 9–12 months in an IT role. Should understand TCP/IP, basic switching, and subnetting.
Should you skip this exam?
If you are targeting enterprise Cisco networking roles, CCNA is the stronger credential. Take Network+ if you want vendor-neutral coverage, a faster time-to-cert, or DoD 8570 compliance.
Courseiva study tip
The subnetting and troubleshooting questions are the hardest. Be able to subnet IPv4 and IPv6 without a calculator, and know the OSI model's relevance to real troubleshooting scenarios.
UK salary range
£28,000–£45,000
US salary range
$45,000–$70,000
Job roles that cite N10-009
What certification to take next
$369 USD.
720 out of 900.
For networking careers, CCNA is more respected — especially in environments that run Cisco equipment. Network+ is faster, cheaper, and vendor-neutral. Take Network+ for a quick first credential or for DoD 8570 compliance. Take CCNA if networking is your long-term career focus.
Yes — 3 years. Renew through CompTIA CE or by passing a higher-level cert.
Yes. Network+ is approved for IAT Level II under DoD 8570 / 8140, making it required for many US government and defence contractor IT roles.
Network+ is moderately easy for candidates who have completed A+ or have equivalent IT experience. The subnetting and troubleshooting questions are the hardest parts. Most candidates need 80–150 hours of study.
See how N10-009 stacks up against related certifications.
100% free — no account required
Everything on Courseiva for N10-009 is free — no subscription, no trial, no email wall.
Courseiva Exam Intelligence
Data confidence: BuildingDerived from Courseiva's continuously updated practice dataset: 464 exam-style questions. Updated 2 July 2026.
Question difficulty mix
Average time per question: 90s
5
Exam domains
official blueprint domains covered by the bank
464
Questions
exam-style questions in the N10-009 bank
Practice modes
Choose a mode that matches your current study phase. Use topic practice early on and mock exams closer to your exam date.
All N10-009 Questions
Browse the full question bank organised by domain and difficulty.
Practice Test
Start a 20-question session with a full explanation after each answer.
Mock Exam
Simulate the real exam with a timed, full-length question set.
Quick 25
A 25-question warm-up — ideal for a short daily study session.
Flashcards
Reinforce key terms, commands, and protocol facts with flashcards.
Domain Practice
Focus exclusively on one exam domain to target your weakest area.
50-Question Set
Mid-length practice set covering all domains.
Exam guide
Start with a short practice session, review each missed answer, then return to the topics that caused mistakes.
CompTIA Network+ N10-009 spans 5 official exam domains (Networking Concepts, Network Implementation, Network Operations, and more). Questions test whether you can apply each objective in a realistic scenario, not just recall a definition.
Related practice questions
Use these internal links to move from the exam guide into focused topic practice pages.
Practise N10-009 questions linked to Networking Concepts.
Practise N10-009 questions linked to Network Implementation.
Practise N10-009 questions linked to Network Operations.
Practise N10-009 questions linked to Network Security.
Practise N10-009 questions linked to Network Troubleshooting.
Practise N10-009 questions linked to Network+ network fundamentals.
Practice directory
Every practice set is a unique selection of questions — numbered tests, domain-focused sessions, and topic-specific quizzes.
Showing 8 of 34 tests. See all 34 N10-009 practice tests →
Official blueprint
Target weak areas by practising questions from a single domain. Each domain page shows all questions, difficulty breakdown, and a focused practice session.
Practise N10-009 questions in this domain →
Practise N10-009 questions in this domain →
Practise N10-009 questions in this domain →
Practise N10-009 questions in this domain →
Practise N10-009 questions in this domain →
Deep-dive questions
The most-searched N10-009 questions — each with a detailed explanation, worked example, and full answer breakdown.
Browser-based calculators and references used when studying for N10-009.
Subnet Calculator
IP + CIDR or subnet mask → network, broadcast, hosts, wildcard
IP Binary Converter
Dotted decimal ↔ binary — with bit-by-bit breakdown
CIDR Reference Table
Every CIDR prefix from /1 to /32 — mask, wildcard, host count
VLSM Calculator
Base network + host requirements → efficiently allocated VLSM subnets
TCP/UDP Port Reference
Search 90+ well-known ports by name, number, or protocol — with exam context
OSI Model Reference
Click any layer → PDU, protocols, devices, and exam tips
Number Base Converter
Binary ↔ Decimal ↔ Hex ↔ Octal — with bit breakdown
IPv6 Address Tool
Expand, compress, and identify any IPv6 address type
Term reference
These terms appear frequently in N10-009 questions. Understanding them precisely reduces guessing and improves scores.
Dynamic route
A route that is automatically learned and updated by a router using a routing protocol, rather than being manually configured.
Security pillar
The Security pillar is a set of best practices for designing and operating cloud systems that protect data, systems, and assets through confidentiality, integrity, and availability controls.
File Transfer Protocol
File Transfer Protocol (FTP) is a standard network protocol used to transfer files between a client and a server over a TCP/IP network.
Public IP address
A globally unique IP address assigned to a device that allows it to communicate directly over the internet.
Persistent Disk
Persistent Disk is a durable, high-performance block storage service for Google Cloud virtual machines that retains data even after the VM is shut down or deleted.
Extensible Authentication Protocol
Extensible Authentication Protocol (EAP) is a flexible authentication framework used in network access control, particularly in wireless and point-to-point connections, that supports multiple authentication methods without requiring changes to the underlying protocol.
Proxy server
A proxy server is an intermediary device or software that sits between your computer and the internet, forwarding requests and responses while providing security, privacy, and caching.
Duplex mismatch
A duplex mismatch occurs when two connected network devices are configured with different duplex settings (one half-duplex, one full-duplex), leading to poor performance and data errors.
Learn the concepts
163 book-style chapters cover every N10-009 objective in plain English. Read the theory here, then test it with practice questions.
Chapter 1
Network Device Hardening
12 min read
Chapter 2
Interior vs Exterior Routing Protocols
25 min read
Chapter 3
Network Virtualization and VXLAN
25 min read
Chapter 4
Network Access Control (NAC)
25 min read
Chapter 5
OSI Model for Network+
25 min read
Chapter 6
TCP/IP Model and Protocol Suite
25 min read
Chapter 7
Common Ports and Protocols
25 min read
Chapter 8
IPv4 and IPv6 Addressing
25 min read
Free study guide
The Courseiva N10-009 study guide covers exam format, the official domain blueprint with weights, a structured study plan, and domain-specific tips for each section. Use it alongside practice questions to build both conceptual depth and exam confidence.
Sample questions
Original exam-style questions — not copied from any exam or dump site. Open a question for the full answer breakdown.
A network technician runs the command "traceroute 8.8.8.8" from a workstation. The output shows the first hop as the default gateway, the second hop as an internal router, and then…
A network engineer is designing a network and needs to ensure that broadcast traffic is contained within a single broadcast domain. Which of the following devices should be used to…
A network administrator is experiencing issues where unauthorized devices are offering IP addresses to clients, causing connectivity problems. Which security feature should be enab…
A company wants to prevent unauthorized devices from connecting to the corporate network. The policy requires that only specific MAC addresses are permitted on switch ports. Which…
A network administrator is connecting two switches and wants to increase the bandwidth between them while also providing redundancy in case one link fails. Which technology should…
An organization uses OSPF as its interior gateway protocol in a multi-area design. After a core router failure, the network takes a long time to reconverge. Which technology can be…
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Official booking and top-rated study resources for the N10-009.
Courseiva provides free CompTIA Network+ N10-009 (N10-009) practice questions with original exam-style questions, detailed explanations, topic-based practice, mock exams, readiness tracking, and study analytics. Courseiva is an independent platform and is not affiliated with CompTIA.