CompTIA Network+ Practice Exam (Free Sample)

Free practice sample

Fifteen original Network+ practice questions, unlocked with no signup and instant scoring. The sample draws proportionally across all five domains of the N10-009 exam objectives, so the mix you see here reflects the shape of the real exam rather than a single topic slice.

Network+ rewards diagnosis over recall. The hard questions hand you a symptom (one VLAN unreachable, throughput collapsing after a switch swap, clients associating to the wireless but never getting an address) and ask what you would check next, or which cause best explains what you are seeing. Getting there means working the layers in order instead of jumping to the answer that mentions the most familiar acronym. These questions are written to that standard, and every explanation names the winning answer and the near-miss it beats.

Exam version. This sample targets N10-009 (V9), which launched June 20, 2024 and is the current Network+ exam. CompTIA typically retires a version about three years after release and overlaps it with its successor, so a V10 announcement is likely on that horizon. Confirm the active exam version, and its retirement date, at comptia.org before you schedule.

Vendor · CompTIA Exam code · N10-009 (V9) Questions · up to 90 Duration · 90 min Pass 720 · scale 100-900 Multiple-choice + performance-based 5 domains Launched June 20, 2024
Networking Concepts Domain 1 · 23%
Network Implementation Domain 2 · 20%
Network Operations Domain 3 · 19%
Network Security Domain 4 · 14%
Network Troubleshooting Domain 5 · 24%

CompTIA Network+ (N10-009) — Free Sample Questions

  1. Question 1 of 15Networking Concepts

    Which OSI layer is responsible for logical addressing and routing packets between different networks?

  2. Question 2 of 15Networking Concepts

    Which DNS record type maps a hostname to an IPv6 address?

  3. Question 3 of 15Networking Concepts

    How many usable host addresses does a /24 IPv4 subnet provide?

  4. Question 4 of 15Networking Concepts

    Which protocol and port combination is used for encrypted web traffic by default?

  5. Question 5 of 15Network Implementation

    A VLAN must extend across two switches. What should be configured on the link that connects them?

  6. Question 6 of 15Network Implementation

    Which of the following is a private RFC 1918 address that will not route on the public internet?

  7. Question 7 of 15Network Implementation

    What is the primary purpose of Power over Ethernet (PoE)?

  8. Question 8 of 15Network Operations

    Which document defines the uptime and response commitments a provider owes to a customer?

  9. Question 9 of 15Network Operations

    Which protocol is used by monitoring platforms to collect interface statistics and device health data from switches and routers?

  10. Question 10 of 15Network Operations

    Before troubleshooting reports of a slow network, what should a technician compare current performance against?

  11. Question 11 of 15Network Security

    Traffic from thousands of compromised devices floods a web server until legitimate users cannot connect. What type of attack is this?

  12. Question 12 of 15Network Security

    Which switch feature limits which MAC addresses may send traffic through a given switch port?

  13. Question 13 of 15Network Troubleshooting

    A user can reach a server by IP address but not by its hostname. Which service is the most likely cause?

  14. Question 14 of 15Network Troubleshooting

    Which utility shows the router-by-router path packets take to a destination?

  15. Question 15 of 15Network Troubleshooting

    After a switch replacement, one link runs far slower than expected and the interface counters show late collisions and CRC errors. What is the most likely cause?

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Frequently asked questions about Network+

How many questions are on the actual Network+ exam?

Up to 90 questions in a 90-minute window. The exam mixes multiple-choice with performance-based questions, so the count varies from sitting to sitting, pace yourself against the clock rather than against a fixed number. Confirm current logistics on comptia.org when you book, since CompTIA sets the format and may change it.

What score do I need to pass Network+?

CompTIA scores N10-009 on a scale running from 100 to 900, with 720 required to pass. That conversion does not map linearly to a raw percentage, so 720 is not “80%”. Treat a consistent mid-70s raw score on realistic practice questions as the point where you have genuine margin rather than a coin flip.

Which domains should I spend the most time on?

Network Troubleshooting (24%) and Networking Concepts (23%) together account for 47% of your scored questions, nearly half the exam sits on structured diagnosis and the fundamentals underneath it. Network Implementation follows at 20% and Network Operations at 19%. Inside Networking Concepts, IPv4 subnetting is the sub-topic most reliably lost to arithmetic rather than understanding, so drill the boundary and host-count math until it is automatic under time pressure. Network Security is the lightest at 14%, but its ideas, segmentation, 802.1X, rogue DHCP, on-path attacks, surface inside troubleshooting scenarios in other domains, so light weighting is not permission to skip it.

What are performance-based questions?

Alongside multiple-choice items, N10-009 includes performance-based questions that ask you to complete a task or work through a scenario rather than pick a letter. They tend to appear early in the sitting and take longer than a multiple-choice item, which is the main reason candidates run short on time. If one stalls you, flag it and come back, the multiple-choice items are worth banking first. CompTIA describes the current format on comptia.org.

Should I wait for the next version, or sit N10-009 now?

If you are ready now, sit now. N10-009 has been the live version since June 20, 2024, and a certification earned on the current version does not expire early because a new one launches. CompTIA typically overlaps a retiring version with its successor, so there is a transition window rather than a cliff, but waiting means studying against objectives that have not been published yet. Check comptia.org for the retirement date before you commit either way.

Should I take Network+ before Security+?

For most people, yes. Security+ quietly assumes you already understand how networks are built and how traffic actually moves, segmentation, routing, and the ports-and-protocols layer show up in security scenarios without being re-taught. Network+ is the vendor-neutral benchmark that establishes that foundation, which is why help desk technicians use it to move up and security candidates use it to close the gap before they sit Security+.

How is this free sample different from the full Certifym bank?

The sample is a fixed 15-question set spread across the five domains at blueprint proportions, with no account needed. Members get ten full-length Network+ practice exams, each attempt drawing a fresh randomized 90-question set stratified to the official domain weightings, plus full explanations, study mode, and domain drills, with new practice content added every week and your progress saved. None of the members’ items appear in this sample.

Is Certifym affiliated with CompTIA?

No. Certifym.net is operated by Certifym Exam Services, LLC and is not affiliated with, endorsed by, or sponsored by CompTIA. All questions and explanations on this site are original content produced by Certifym and are not sourced from actual CompTIA exam questions.

Trademark notice & independence. Certifym.net is operated by Certifym Exam Services, LLC and is not affiliated with, endorsed by, or sponsored by CompTIA. CompTIA® and Network+® are registered trademarks of CompTIA, Inc., used here only to identify the certification these study materials are intended for. The N10-009 exam objectives and their domain structure are the property of CompTIA, Inc.; download the current objectives directly from comptia.org.

All practice questions, answers, and explanations on this page are original content produced by Certifym Exam Services, LLC. They are not actual CompTIA examination questions and are not represented as such. Exam format, domain weights, and version timelines are set by CompTIA and may change; verify current details at comptia.org before scheduling.