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CompTIA Network+ Practice Tests

CompTIA Network+ Practice Test for Subdomain 5.2 #01

ByThe Test Master

Apr 13, 2026 #cabling, #CompTIA, #Network+, #physical interface

Welcome to today’s CompTIA Network+ practice test!

This practice test uses our new UI!

Today’s practice test is based on Subdomain 5.2 (Given a scenario, troubleshoot common cabling and physical interface issues) from the CompTIA Network+ N10-009 objectives.

This beginner-level practice test is inspired by the CompTIA Network+ (N10-009) exam and is designed to help you reinforce key networking concepts on a daily basis.

These questions are not official exam questions, nor are they brain dumps, but they reflect topics and scenarios relevant to the Network+ certification. Use them to test your knowledge, identify areas for improvement, and build daily cybersecurity habits.

Note: CompTIA and Network+ are registered trademarks of CompTIA. This content is not affiliated with or endorsed by CompTIA.

To choose CompTIA Network+ practice tests based on specific domains/subdomains, click that link.

Recommended read: Ultimate CompTIA Network+ Study Guide (2026)

CompTIA Network+ Practice Test for Subdomain 5.2 #01
10 questions • Single best answer
Question 1
A field technician at an ISP is dispatched to resolve a customer complaint about intermittent connectivity. The technician notices that the Ethernet cable jacket is frayed and exposing internal wires. Which issue is most likely causing the problem?
    Question 2
    A technician is troubleshooting a workstation that cannot connect to the network. The link light on the NIC is off even though the cable is plugged in. What should the technician check FIRST?
      Question 3
      A network administrator discovers that a recently installed Cat 6 cable run exceeds the maximum recommended length. Users connected through this cable experience slow speeds and dropped connections. What is the MOST likely cause?
        Question 4
        A data center technician is replacing a faulty fiber optic cable. After installation, there is no connectivity. Which tool should be used to verify proper light transmission through the fiber?
          Question 5
          A user reports slow network performance. The technician finds that the cable is tightly bent around a sharp edge. What is the MOST likely issue?
            Question 6
            A network technician is troubleshooting a connection and uses a tone generator and probe. What is the primary purpose of this tool?
              Question 7
              A technician notices that a network cable is running parallel to electrical wiring and users experience intermittent connectivity. What is the MOST likely cause?
                Question 8
                A network administrator finds that a patch panel connection is loose. What issue can this cause?
                  Question 9
                  A technician is testing a newly installed Ethernet drop and finds that several wires are incorrectly paired. What is this issue called?
                    Question 10
                    A network engineer uses a cable tester and sees that one wire is not conducting at all. Which fault does this indicate?
                      Answered: 0/10

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