CompTIA Network+ (N10‑009) Practice Exams
About the CompTIA Network+ N10-009 exam
Exam at a glance
CompTIA's vendor-neutral foundational-tier networking pillar, released June 20, 2024.
Who it's for
Network+ N10-009 is built for network administrators, network technicians, IT helpdesk staff growing into networking, and security professionals who need a solid networking foundation before specializing. It's the vendor-neutral counterpart to Cisco's CCNA — broader in scope, less Cisco-specific. The credential is also approved under DoD 8140.03 for select cybersecurity workforce roles, making it valuable for U.S. federal and defense-contractor career paths.
Domain weighting
- Network Troubleshooting: 24%
- Networking Concepts: 23%
- Network Implementation: 20%
- Network Operations: 19%
- Network Security: 14%
Prerequisites
No formal prereqs. CompTIA recommends holding CompTIA A+ first and having 9-12 months of hands-on experience as a junior network administrator or network support technician. Motivated self-learners can pass without A+ given 8-10 weeks of structured study + hands-on lab time.
Why take this certification
- Vendor-neutral foundation. Unlike Cisco CCNA or Juniper JNCIA, Network+ teaches networking concepts that transfer across every vendor, every cloud, and every job role. Pass once, apply everywhere.
- Industry-recognized hiring credential. Network+ appears in roughly 35% of entry- and mid-level networking job postings and is a common requirement for help-desk-to-network-admin promotions.
- DoD 8140.03 approved. Required or accepted for select U.S. Department of Defense cybersecurity workforce roles, opening federal and defense contractor careers.
- Bridge to security and cloud. Network+ is the recommended bridge to Security+ (SY0-701), Cloud+ (CV0-004), and CloudNetX. Most security and cloud roles assume you already understand networking.
What you'll learn in the N10-009 exam
N10-009 validates that you can design, implement, operate, secure, and troubleshoot networks across LAN, WAN, wireless, and cloud environments. Most exam questions describe a scenario — a topology, a symptom, a requirement — and ask you to choose the correct configuration, protocol, or diagnostic step.
Core networking topics you'll be tested on
- Models & protocols: OSI and TCP/IP models layer-by-layer, common protocols and their port numbers (HTTP/S, SSH, DNS, DHCP, SMTP, SNMP, NTP, RDP, LDAP/S, SQL services), encapsulation.
- IP addressing: IPv4 subnetting and summarization (CIDR, VLSM), IPv6 addressing types (link-local, global unicast, anycast), DHCP/SLAAC, NAT/PAT.
- Network types: LAN, WAN, MAN, PAN, SAN, CAN; physical vs logical topologies.
- Cabling & connectors: Copper (Cat 5e/6/6a/7/8) and fiber (single-mode vs multi-mode, SC/LC/MTP connectors), transceivers (SFP/SFP+/QSFP).
- Wireless: Wi-Fi standards through Wi-Fi 6/6E/7, channel and band planning (2.4/5/6 GHz), security protocols (WPA2/WPA3, 802.1X with EAP), site survey concepts.
- Routing: Static vs dynamic; OSPF and BGP at concept level; route selection logic and administrative distance.
- Switching: VLANs, trunking (802.1Q), Spanning Tree Protocol (STP/RSTP), port aggregation (LACP), port security.
- Cloud networking: VPC/VNet concepts, regions/AZs, hybrid connectivity (site-to-site VPN, direct/express connect), cloud-native load balancing.
- Network services: DHCP, DNS (record types, zone delegation), NTP, SNMP, NetFlow/sFlow, syslog.
- Virtualization & SDN: Virtual switches and NICs, SDN architecture (control vs data plane), SD-WAN concepts.
- Network security: Stateful vs stateless firewalls, IDS/IPS, NAC, VPN (IPsec, SSL/TLS at concept level), zero-trust principles, common attacks (spoofing, on-path, DoS/DDoS).
- Troubleshooting: The CompTIA seven-step methodology, tools (ping, traceroute/tracert, nslookup, dig, arp, netstat, tcpdump/Wireshark), reading switch and router output, interpreting packet captures.
How the practice exams help
Each free question and every premium exam mirrors the scenario-and-symptom style CompTIA uses — multiple-choice items that often look similar until you parse the constraint, and explanations that walk through both the protocol mechanics and the troubleshooting reasoning. Premium exams add performance-based-style scenarios (configuration tasks, output interpretation) that match the PBQs you'll face on test day.
How to prepare for the N10-009 exam
A successful N10-009 plan combines concept study, hands-on lab work, and timed practice. Most IT generalists with some networking exposure pass in 6-10 weeks of focused study (10-15 hours per week). Recommended approach:
- Build the conceptual foundation (2-3 weeks). Work through CompTIA's official CertMaster Learn for Network+ or the official Sybex N10-009 Study Guide (Todd Lammle). Watch Professor Messer's free N10-009 video series alongside reading — Messer's free videos are the de facto community standard. For a deeper, more vendor-neutral grounding in why networking works the way it does, Declan Moran's Modern Networking: Fundamental Concepts complements the exam-focused books with first-principles explanations of protocols and architecture.
- Hands-on labs (2-3 weeks). Build virtual networks with Cisco Packet Tracer (free) or GNS3 (free). Practice VLAN configuration, STP behavior, OSPF basics, ACL writing, and DHCP/DNS setup. Capture and read traffic with Wireshark. Hands-on muscle memory is critical for performance-based questions.
- Drill troubleshooting (1-2 weeks). Network Troubleshooting is 24% of the exam — the single largest domain. Practice the CompTIA seven-step methodology against fault scenarios. Run ping/traceroute/nslookup against your home network and lab topologies until the tools feel automatic.
- Practice exams (1-2 weeks). Take timed practice tests, review every wrong answer, and re-read the relevant chapter. Aim for consistent 85%+ scores on full-length practice exams before scheduling. Our premium bank gives 12 full-length exams to drill from.
Recommended timeline
6-8 weeks for IT generalists with helpdesk or A+ background. 8-10 weeks for self-taught beginners. Add 1-2 weeks if PBQs feel uncertain — practice configuration tasks in Packet Tracer until the syntax is second nature.
Official resources
CompTIA publishes the official N10-009 exam objectives and details on their site. The free Professor Messer N10-009 video course covers every objective. CompTIA's paid CertMaster Learn + Labs bundle adds interactive labs aligned to the exam.
Frequently asked questions
Are these actual exam questions?
No. All Nex Arc CompTIA Network+ N10-009 practice questions are original content based on the provider's published exam blueprint, official documentation, and real-world scenarios across every topic the exam covers. We do not offer brain dumps, leaked questions, or actual exam content. Using or distributing real exam questions violates certification provider agreements and can result in certification revocation.
How many questions are in the CompTIA Network+ N10-009 exam?
The N10-009 exam contains a maximum of 90 questions delivered in 90 minutes. The mix combines multiple-choice items (single answer and multiple response) with performance-based questions (PBQs) that simulate real network configuration and troubleshooting tasks in a browser-based interface. PBQs typically appear first and often carry more weight than multiple-choice items.
What's the N10-009 passing score?
The passing score is 720 on a scale of 100-900. Note this is different from Security+ (SY0-701), which uses a 750 passing score. CompTIA uses a scaled scoring model where not all questions carry equal weight — performance-based questions are typically worth more than multiple-choice items. Focus on understanding networking concepts and hands-on troubleshooting rather than memorizing answers.
How do I access the full N10-009 practice exam?
Click on the Buy Now button in the sidebar to purchase the complete CompTIA Network+ N10-009 course. After payment, you'll have instant access to 12 practice exams with detailed explanations and lifetime access.
What are the prerequisites for the N10-009 exam?
There are no formal prerequisites for Network+. CompTIA recommends candidates hold CompTIA A+ certification first and have 9-12 months of hands-on experience as a junior network administrator or network support technician. Network+ is designed as the next step after A+ and as the foundational networking credential before specializing in security (Security+), cloud (Cloud+), or vendor-specific tracks. Self-taught beginners without A+ can still pass with 8-10 weeks of focused study and hands-on lab practice.
How long is the Network+ certification valid?
CompTIA Network+ is valid for three years from the date you pass the exam. You can renew through CompTIA's Continuing Education (CE) program by earning 30 Continuing Education Units (CEUs) over the three-year cycle — completing courses, attending conferences, publishing articles, or earning higher-level CompTIA certifications such as CySA+, PenTest+, or CASP+. Passing a higher-tier CompTIA cert (e.g. Security+, Cloud+, or CySA+) also renews Network+ automatically. Alternatively you can retake the current version of the exam.
What's the exam cost and can I retake it if I fail?
The N10-009 exam costs $369 USD at list price. CompTIA frequently offers vouchers via the CompTIA Store and academic partners at a discount. If you fail your first attempt you can retake immediately with no waiting period. After a second failed attempt, CompTIA requires a 14-day waiting period before each subsequent attempt. Each retake requires a new exam fee. The exam is delivered through Pearson VUE at testing centers or online via OnVUE proctoring.
What networking topics are most heavily tested on N10-009?
Based on CompTIA's published domain weightings, troubleshooting (24%) and core networking concepts (23%) dominate the exam. Expect heavy coverage of: OSI/TCP-IP models, IPv4 and IPv6 addressing including subnetting, common protocols and port numbers, routing (static, OSPF, BGP at concept level), switching (VLANs, STP, trunking), wireless standards (Wi-Fi 6/6E/7, WPA3, 802.1X), cloud networking concepts (VPC, regions, hybrid), network services (DHCP, DNS, NTP, SNMP), and structured troubleshooting methodology with tools like ping, traceroute, nslookup/dig, and packet captures. Network security (14%) covers firewalls, IDS/IPS, NAC, VPN concepts, and zero-trust principles.
How does N10-009 differ from the previous N10-008 version?
N10-009 (released June 20, 2024) modernizes the exam with significantly expanded cloud networking content (VPC/VNet concepts, hybrid connectivity, cloud-native networking), more software-defined networking (SDN) and SD-WAN coverage, and added zero-trust security architecture. It also reflects current wireless standards (Wi-Fi 6E and Wi-Fi 7) and updated security protocols (WPA3). N10-009 retired some legacy WAN technologies (Frame Relay, ATM at depth), reduced focus on older copper cable specifications, and refined the domain blueprint with revised weightings. N10-008 is in its retirement window.
Is N10-009 approved under DoD 8140.03?
Yes. CompTIA Network+ N10-009 is approved under the U.S. Department of Defense Directive 8140.03 (which superseded DoD 8570.01) for select cybersecurity workforce roles. It is commonly accepted at the IAT Level I baseline alongside or as a stepping stone toward Security+. This makes Network+ valuable for U.S. federal government and military contractor positions requiring DoD-aligned credentials. Always check the current DoD 8140 Cyber Workforce Qualification Matrix for the specific roles N10-009 satisfies.