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Practice questions to help you prepare for the CompTIA® Network+® (N10-009) exam

Full practice exams run on the real exam's 90 minute limit. CompTIA states a maximum of 90 questions, and a full practice exam on the site serves 90. The practice exams use multiple-choice questions and leave out performance-based questions. Every question is original and every option is explained. The site scores you on each domain CompTIA publishes, so you see what to study next. The question bank holds hundreds of practice questions.

Exam facts

  • Questions: maximum of 90, a mix of multiple-choice and performance-based questions [1]
  • Time limit: 90 minutes [1]
  • Passing score: 720 on a scale of 100 to 900 [1]
  • Exam version: V9 [1]
  • Recommended experience: CompTIA A+ certification, with 9 to 12 months of hands-on experience in a junior network administrator or network support technician role [1]
  • Exam languages (real exam): English, German, Japanese, Portuguese, Spanish [1]

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Exam domains and weights

These are CompTIA's domains and objectives for the CompTIA Network+ (N10-009) exam, word for word. [1] [2]

Domain 1: Networking Concepts, 23% of the exam

  • "Explain concepts related to the Open Systems Interconnection (OSI) reference model."
  • "Compare and contrast networking appliances, applications, and functions."
  • "Summarize cloud concepts and connectivity options."
  • "Explain common networking ports, protocols, services, and traffic types."
  • "Compare and contrast transmission media and transceivers."
  • "Compare and contrast network topologies, architectures, and types."
  • "Given a scenario, use appropriate IPv4 network addressing."
  • "Summarize evolving use cases for modern network environments."

Domain 2: Network Implementation, 20% of the exam

  • "Explain characteristics of routing technologies."
  • "Given a scenario, configure switching technologies and features."
  • "Given a scenario, select and configure wireless devices and technologies."
  • "Explain important factors of physical installations."

Domain 3: Network Operations, 19% of the exam

  • "Explain the purpose of organizational processes and procedures."
  • "Given a scenario, use network monitoring technologies."
  • "Explain disaster recovery (DR) concepts."
  • "Given a scenario, implement IPv4 and IPv6 network services."
  • "Compare and contrast network access and management methods."

Domain 4: Network Security, 14% of the exam

  • "Explain the importance of basic network security concepts."
  • "Summarize various types of attacks and their impact to the network."
  • "Given a scenario, apply network security features, defense techniques, and solutions."

Domain 5: Network Troubleshooting, 24% of the exam

  • "Explain the troubleshooting methodology."
  • "Given a scenario, troubleshoot common cabling and physical interface issues."
  • "Given a scenario, troubleshoot common issues with network services."
  • "Given a scenario, troubleshoot common performance issues."
  • "Given a scenario, use the appropriate tool or protocol to solve networking issues."

Sample questions

Three questions from our practice bank for the CompTIA Network+ (N10-009) exam, with the answer and why each option is right or wrong.

Question 1

A technician writes the OSI layers in order, starting at Layer 7 and ending at Layer 1. Which of the following lists the layers in the right order?

  • A. Application, Presentation, Session, Transport, Data link, Network, Physical
  • B. Application, Presentation, Session, Transport, Network, Data link, Physical
  • C. Application, Presentation, Session, Network, Transport, Data link, Physical
  • D. Application, Session, Presentation, Transport, Network, Data link, Physical

Answer: B. The OSI model has seven layers, numbered from Physical (1) at the bottom up to Application (7) at the top. [2]

  • A. Wrong. This list puts Data link above Network. Network is Layer 3, and Data link is Layer 2 beneath it.
  • B. Right. From the top, the model runs Application (7), Presentation (6), Session (5), Transport (4), Network (3), Data link (2) and Physical (1), the order the technician needs.
  • C. Wrong. Here Network comes before Transport, but Transport is Layer 4 and sits above Network at Layer 3.
  • D. Wrong. This list swaps Session and Presentation. Presentation is Layer 6 and Session is Layer 5.

Question 2

Security policy says a branch router's path to one partner subnet may change only when an administrator edits the router's configuration. Which of the following should the administrator configure for that subnet?

  • A. BGP
  • B. EIGRP
  • C. Static route
  • D. OSPF

Answer: C. A static route is a next hop the administrator defines for that destination in the router's configuration. Of the four options, it's the only one not learned from other routers. [3]

  • A. Wrong. BGP exists to exchange reachability information with other BGP systems, so the route would shift with whatever its peers advertise.
  • B. Wrong. EIGRP learns its routes through neighbor relationships, so the partner subnet's path would follow what neighbors advertise, not the configuration alone.
  • C. Right. The static route is the one choice set in the configuration itself, as the policy asks. BGP, EIGRP and OSPF all take their routes from what neighbors advertise.
  • D. Wrong. OSPF is a dynamic protocol that detects topology changes and calculates new routes on its own, so the path could move with no configuration edit.

Question 3

Storm damage hit several wiring closets and the ceiling access points near them, and the network team must find each affected device by serial number and the place it was installed. Which of the following documents should the team check?

  • A. Baseline configuration
  • B. Asset inventory
  • C. Service-level agreement
  • D. Wireless site survey

Answer: B. An asset inventory records what each device is and where it's installed, so the team can look up every damaged unit in one place. [4]

  • A. Wrong. Nothing in the stem is about how the closet gear is set up. The team needs every damaged device's serial number and where it's installed, and a baseline configuration isn't kept as that list.
  • B. Right. Serial numbers and where each device is installed are exactly what an asset inventory records, and those are the two facts the team is after.
  • C. Wrong. The damaged gear is the team's own. A service-level agreement won't list serial numbers or where each device is installed.
  • D. Wrong. The lookup covers the closet gear as well as the access points, and it runs by serial number. A wireless site survey isn't a list of every device by serial number and where it's installed.

Practice on ExamSens.ai for the CompTIA Network+ (N10-009) exam

ExamSens.ai is not authorized, endorsed or sponsored by CompTIA.

CompTIA and CompTIA Network+ are registered trademarks of CompTIA. [5]

References

[1] https://www.comptia.org/en-us/certifications/network/

[2] https://lecbyo.files.cmp.optimizely.com/download/35a7403ab73211ef9dcda6f347fbf652

[3] https://www.rfc-editor.org/rfc/rfc1812.txt

[4] https://csrc.nist.gov/glossary/term/inventory

[5] https://www.comptia.org/en-us/legal/trademarks/

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