Network Troubleshooting
55 free practice questions with explanations
PassNova has 55 free CompTIA Network+ practice questions on Network Troubleshooting, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Network Troubleshooting: example questions & answers
Here are 6 example questions from this topic. Practise the full set of 55 free in the browser.
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What is the FIRST step of the network troubleshooting methodology?
- A Establish a theory
- B Identify the problem ✓
- C Test the theory
- D Document
Answer: Step 1 is to identify the problem by gathering information and questioning users.
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After establishing a theory of probable cause, what comes next?
- A Document
- B Test the theory to determine the cause ✓
- C Implement immediately
- D Escalate
Answer: After forming a theory, you test it to confirm or refute the probable cause.
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What is the final step of the troubleshooting methodology?
- A Test the theory
- B Document findings, actions, and outcomes ✓
- C Establish a plan
- D Verify functionality
Answer: Documenting findings, actions, and outcomes is the final step.
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Which command tests basic IP connectivity to a host?
- A ping ✓
- B tracert
- C nslookup
- D arp
Answer: ping sends ICMP echo requests to verify reachability.
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Which command shows the path packets take across routers?
- A ping
- B traceroute/tracert ✓
- C ipconfig
- D netstat
Answer: traceroute/tracert reveals each hop between source and destination.
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Which command displays a host's IP configuration on Windows?
- A ifconfig
- B ipconfig ✓
- C ip a
- D route
Answer: ipconfig shows IP configuration on Windows; ifconfig/ip a are Linux equivalents.