Desktop Support Interview Question & Answer

Desktop Support: Common Questions & Answers

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Desktop Support – Common Question & Answer
Desktop Support – Common Interview/Helpdesk Questions & Answers

Q: What is Desktop Support?

  1. Supporting end-users with hardware and software issues
  2. Involves installing, diagnosing, repairing, maintaining, and upgrading devices
  3. First level of IT support (Tier 1/Tier 2)

Q: What is your experience with desktop support?
A: Describe relevant experience, tools used, ticketing systems, etc.

Q: How do you prioritize multiple tickets?
A: Based on severity, impact, and SLA requirements.

Q: Describe a time you solved a difficult issue.
A: Include STAR method: Situation, Task, Action, Result.

Q: How do you troubleshoot a PC that won’t turn on?
A: Check power cable → Power supply → Motherboard → RAM → Hard drive.

Q: What’s the difference between RAM and ROM?
A: RAM is volatile memory used for current tasks; ROM is non-volatile and stores firmware.

Q: What do you do when a user can’t log in?
A: Verify username/password → Check domain → Account lockout → Reset password.

Q: How do you fix a slow PC?
A: Clear temp files, check for malware, manage startup programs, increase RAM.

Q: A user cannot access the internet. What do you check?

  1. Check physical connection
  2. IP address configuration
  3. Ping gateway & DNS
  4. Try restarting router or NIC

Q: What is Safe Mode?
A: A diagnostic mode to troubleshoot Windows problems with minimal drivers.

Q: How do you resolve a Blue Screen of Death (BSOD)?
A: Note error code → Check recent hardware/software changes → Use recovery tools.

Ping / Tracert / ipconfig / nslookup – Network tools
Event Viewer – Log analysis
Device Manager – Hardware issues
Task Manager / MSCONFIG – System performance