CompTIA Network+ Â· N10-009

Network+ Practice Exam: 700 Questions with Explanations

Preparing for the CompTIA Network+ (N10-009) certification? CertCrack gives you 700 original practice questions mapped to the official N10-009 objectives — networking fundamentals, implementations, operations, security, and troubleshooting. Every question includes a detailed explanation so you learn the why, not just the answer.

What's inside

700 original questions — written fresh for N10-009, never copied from real exams
Detailed explanations on every question, including why wrong answers are wrong
Full PDF included — download the complete question bank for offline study
3 months (90 days) of access to the interactive online question bank
Free 30-question sample quiz and free sample PDF — no account needed to try

Try 3 sample questions

These are real samples from the Network+ bank — the full version has 700 like these.

1. Which transport-layer protocol provides reliable, sequenced delivery of data between hosts?

UDP
ICMP
TCP
IP

Correct answer: C. TCP establishes a connection with a three-way handshake, then numbers each segment and requires acknowledgments, retransmitting anything lost — that is what makes delivery reliable and ordered. UDP skips all of that for speed, ICMP is a control/messaging protocol, and IP is a connectionless network-layer protocol with no delivery guarantees.

2. You subnet a network with a /26 mask. How many usable host addresses does each subnet provide?

Correct answer: B. A /26 leaves 6 host bits, giving 2^6 = 64 total addresses per subnet. Two are unusable — the network address (all host bits zero) and the broadcast address (all host bits one) — leaving 62 usable host addresses. This "subtract two" step is one of the most-tested subnetting facts on Network+.

3. A new office needs 10 Gbps Ethernet links up to 100 meters over copper. Which cabling standard should be installed?

Cat5e
Cat6
Cat6a
Cat3

Correct answer: C. Cat6a is rated for 10GBASE-T at the full 100-meter distance, with improved shielding against alien crosstalk. Cat6 can only carry 10 Gbps up to about 55 meters, Cat5e tops out at 1 Gbps, and Cat3 is voice-grade cable unsuitable for modern Ethernet. Matching the standard to both speed and distance is a classic Network+ implementation question.

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One payment unlocks the online question bank and the full PDF.

$10 Â· 3 months access

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15-day money-back guarantee (before 25% of questions attempted). PDF downloads are non-refundable.

Exam facts: CompTIA Network+ (N10-009)

Exam: CompTIA Network+ (N10-009)
Cost: $399 USD (exam voucher)
Duration: 90 minutes
Questions: Maximum of 90 — multiple choice and performance-based
Passing score: 720 (on a scale of 100–900)
Validity: 3 years — renewable through CompTIA's Continuing Education program

Frequently asked questions

How long do I get access?

Three months (90 days) from purchase, covering both the interactive online bank and the full PDF download. Access can be extended.

Is there a free trial?

Yes — a free 30-question sample quiz and a free sample PDF are available with no account required, so you can judge the quality before paying.

Are these questions like the real Network+ exam?

All 700 questions are 100% original and mapped to the official N10-009 objectives, written in the same style and difficulty as the real exam. They are not copied from actual CompTIA exams.

Can I study offline?

Yes. Your purchase includes the complete question bank as a downloadable PDF for offline study.

What is the refund policy?

Full access is refundable within 15 days, or before 25% of the questions have been attempted — whichever comes first. Downloaded PDFs are non-refundable.

How much does the Network+ exam cost?

The Network+ (N10-009) exam costs $399 USD.

How many questions are on the Network+ (N10-009) exam?

Up to 90 questions in 90 minutes — a mix of multiple-choice and performance-based questions that put you in simulated networking tasks.

What is the passing score for Network+?

720 on CompTIA's scaled score range of 100 to 900.

Do I need A+ before taking Network+?

No — there are no formal prerequisites. CompTIA recommends holding A+ and having 9–12 months of experience in a junior network administrator or network support role, but neither is required.

How long is the Network+ certification valid?

Three years from the date you pass. You can renew it through CompTIA's Continuing Education (CE) program instead of retaking the exam.

Where can I practice for the Network+ exam for free?

Right here on CertCrack. Start with the free 30-question sample quiz and the free sample PDF on this page — no account needed — and read the free Network+ study guidebook. When you're ready for the full bank, this page gives you every practice question with detailed explanations for $10.