CompTIA Network+ Practice Test for Subdomain 5.5 #02

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Welcome to today’s CompTIA Network+ practice test!

This practice test uses our new UI!

Today’s practice test is based on Subdomain 5.5 (Given a scenario, use the appropriate tool or protocol to solve networking 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 of the Day 260602
10 questions • Single best answer
Question 1
A network operations center analyst at a managed service provider receives a report that a remote office server is unreachable. The analyst sends ICMP echo request packets to the server's IP address and observes the round-trip times and success rate of the replies. Which tool is being used?
    Question 2
    A network analyst needs to determine which specific router hop in the path to a destination is introducing high latency and dropping packets. He runs a tool that probes each hop along the route and reports round-trip time per hop. Which tool is being used?
      Question 3
      A network administrator is troubleshooting why users cannot reach an application server by its hostname. She runs a command that queries the DNS server directly and returns the resolved IP address for the fully qualified domain name. Which tool is she using?
        Question 4
        A security analyst at a financial services firm needs to capture and inspect raw packet data flowing across a network segment to diagnose a suspected application-layer miscommunication between a client and server. Which tool should be used?
          Question 5
          A network engineer needs to verify which TCP and UDP ports are open on a production server to confirm that firewall rules are functioning as intended. Which tool is most appropriate for this port discovery task?
            Question 6
            A network engineer notices that a workstation has established an unusually large number of outbound connections to unfamiliar external IP addresses. To view all active TCP connections and listening ports on the local host, which command-line tool should be used?
              Question 7
              A field technician needs to verify that a newly installed Cat6a structured cabling run is properly terminated at both ends and all conductor pairs are correctly connected. Which tool should be used to perform a full wire map and continuity test?
                Question 8
                A network manager at a government agency wants to collect performance statistics from all routers and switches, including interface error counts, CPU utilization, and bandwidth usage, using a standardized network management protocol. Which protocol is designed for this purpose?
                  Question 9
                  A network engineer at a colocation facility needs to verify that a newly provisioned 10 Gbps fiber circuit can sustain the full contracted throughput. She needs a tool that actively generates and measures TCP or UDP traffic between two network endpoints. Which tool should be used?
                    Question 10
                    A field technician needs to trace which specific port in a 48-port patch panel corresponds to an unmarked wall outlet in a conference room. No cable documentation exists. Which tool should be used to inject a signal at one end and identify it at the other?
                      Answered: 0/10

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