CompTIA Network+ Practice Test for Subdomain 5.1 #03

Welcome to today’s CompTIA Network+ practice test!

This practice test uses our new UI!

Today’s practice test is based on Subdomain 5.1 (Explain the troubleshooting methodology) 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.

CompTIA Network+ Practice Test of the Day 260704

10 questions • Single best answer

Question 1

A network technician at a healthcare organization receives a call from clinical staff unable to reach the EHR system. The technician has no prior knowledge of a recent maintenance window or changes. What is the first step of the troubleshooting methodology?

A. Immediately escalate to the senior network engineer B. Gather information and question users to identify symptoms C. Reboot affected switches to restore connectivity D. Check the core router's routing table for missing entries

Question 2

A helpdesk analyst receives a ticket about intermittent VoIP call drops affecting a single user. The analyst has questioned the user and gathered symptom information. What is the correct next step before establishing a theory of probable cause?

A. Replace the user's patch cable immediately B. Escalate to the telecom vendor for support C. Check the DHCP server for IP address conflicts D. Attempt to duplicate the problem under the same conditions

Question 3

A network administrator at a university suspects an incorrect default gateway is preventing dormitory students from reaching external resources. She pings the gateway from an affected host and receives no response, confirming her theory. What is the correct next step?

A. Determine the next steps to resolve the confirmed misconfiguration B. Establish a new theory and test a different possible cause C. Escalate immediately to the ISP for gateway support D. Replace the access switch serving the dormitory segment

Question 4

A senior engineer at a financial firm has confirmed that a faulty SFP is causing packet loss on a critical uplink. Before physically replacing the module, what step of the troubleshooting process must be completed next?

A. Immediately hot-swap the faulty SFP module B. Document all findings and close the incident ticket C. Establish a plan of action and identify potential effects of the fix D. Verify full system functionality after the change is made

Question 5

A network engineer troubleshooting an outage between two branch offices decides to test Layer 3 reachability with ping first, rather than starting at the Physical layer and working up. This approach reflects which troubleshooting strategy?

A. Bottom-to-top OSI model B. Divide and conquer C. Top-to-bottom OSI model D. Systematic escalation

Question 6

After replacing a failed access switch at a hospital, a technician confirms affected devices are back online and clinical staff can again reach the EHR system. What remaining step of the troubleshooting methodology must still be completed?

A. Begin working on the next open helpdesk ticket B. Submit a post-incident summary to management C. Archive all logs from the failed switch D. Verify full system functionality and implement preventive measures

Question 7

A NOC engineer has restored a BGP session that caused a 45-minute internet outage at a regional ISP. The root cause has been identified as a misconfigured timer on a peer router, and all services are confirmed operational. What is the final step in the troubleshooting process?

A. Document findings, actions, outcomes, and lessons learned B. Escalate to the security team for formal root cause analysis C. Reset all BGP peer sessions to verify stability D. Close the ticket and immediately begin monitoring traffic

Question 8

A technician at a managed service provider receives a ticket describing simultaneous VoIP degradation, slow file transfers, and intermittent DHCP failures at a client site. Which is the correct troubleshooting approach for this scenario?

A. Identify a single root cause that explains all three symptoms B. Fix the most severe symptom and monitor the others C. Approach each problem individually rather than assuming a shared cause D. Escalate all issues to the client's vendor immediately

Question 9

A user reports their workstation cannot access the internet after a long weekend. A technician spends 20 minutes checking routing tables and DNS servers before noticing the Ethernet cable is unplugged. Which troubleshooting principle was overlooked?

A. The technician failed to use the divide and conquer approach B. The technician did not question the obvious first C. The technician should have escalated before checking physical connections D. The technician skipped the step of establishing a theory

Question 10

A network admin notices that users on a specific floor lost access to a shared printer immediately after a scheduled maintenance window the previous evening. No changes were reported by the affected users. What initial troubleshooting step is most relevant here?

A. Run a ping test to the printer from the affected floor B. Question individual users about recent changes to their workstations C. Reboot the access switch serving the affected floor D. Determine whether anything changed during the maintenance window

CompTIA Network+ Practice Test for Subdomain 5.1 #03

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