Top 20 Interview Questions & Answers for Infrastructure Support Engineer – 2025

Are you preparing for an interview as an infrastructure support engineer? Make sure you're ready to showcase your technical skills, problem-solving abilities, and experience with various systems and platforms. These 20 interview questions cover all the essential areas of the job and will help you land your dream role in the ever-growing IT industry.

General Questions

• 1. Why do you want to work as an infrastructure support engineer?
  Answer: I have always been interested in technology and how it helps businesses function smoothly. As an infrastructure support engineer, I will be able to directly contribute towards the stability and efficiency of a company's infrastructure, which is a crucial aspect of any organization's success.
• 2. How do you stay updated with the latest trends and advancements in the IT industry?
  Answer: I make sure to regularly attend tech conferences and seminars and actively participate in online communities and forums. I also constantly read industry-related articles and follow thought-leaders on social media to stay informed about the latest developments.
• 3. How do you handle high-pressure situations?
  Answer: I have developed strong time management and prioritization skills through my past experiences in the IT industry. I am able to remain calm and focused under pressure and handle urgent issues efficiently by assessing the situation and prioritizing tasks accordingly.
• 4. Share an experience where you successfully handled a critical system failure.
  Answer: In my previous role, one of our main servers crashed during a busy workday. I immediately notified the team and began troubleshooting the issue. I ultimately identified a corrupted database and restored it from a backup, minimizing downtime and preventing data loss. After thorough testing, the system was up and running within an hour.
• 5. How do you ensure the security of a company's confidential data?
  Answer: I follow all security protocols and best practices, such as regular backups, strong passwords, and restricted access to sensitive data. I also conduct thorough security audits and implement necessary updates and patches to prevent any vulnerabilities.

Technical Skills & Experience

• 6. What are the key components of a network infrastructure?
  Answer:
  • Hardware: Servers, routers, switches, and other physical devices
  • Software: Network operating systems, firewalls, and other security tools
  • Protocols: TCP/IP, DNS, DHCP, and other protocols used for data transfer
  • Network Infrastructure Services: Directory services, email, virtual private networks (VPNs), and others
• 7. Can you explain the difference between a physical server and a virtual server?
  Answer: A physical server is a physical piece of hardware used to store and distribute data. A virtual server, on the other hand, is a software-based server that utilizes resources from a physical server to operate multiple virtual machines.
• 8. How do you troubleshoot network connectivity issues?
  Answer: First, I check the physical connections and ensure all devices are properly connected. Then, I use network diagnostic tools to identify and isolate the issue. Finally, I test different solutions and monitor the network to ensure the issue is resolved.
• 9. What experience do you have with cloud computing?
  Answer: In my previous role, I migrated the company's infrastructure to the cloud, utilizing services such as Amazon Web Services and Microsoft Azure. I also have experience with setting up and managing cloud-based virtual machines and networks.
• 10. Give an example of how you have implemented automation in your previous role.
  Answer: In my previous role, I automated routine tasks, such as backup processes, using scripting languages like PowerShell. This reduced manual workload and improved efficiency.

Situational Questions

• 11. How would you handle an unexpected system failure during an important project deadline?
  Answer: I would immediately notify the team and begin troubleshooting the issue while keeping them updated on the progress. Depending on the severity of the issue, I may also reach out to senior engineers for assistance. I would prioritize fixing the issue and communicate any changes in the project deadline to stakeholders.
• 12. How do you handle conflicting priorities from different departments?
  Answer: I would first try to find a common ground by discussing the priorities with involved parties. Then, I would assess the urgency and impact of each task and communicate the decision to the relevant departments. If necessary, I would seek guidance from my manager to resolve any conflicts.
• 13. Have you ever encountered a situation where you had to make a quick decision without consulting your team or manager?
  Answer: Yes, in a previous role, a network outage occurred during a scheduled maintenance window. I made the decision to rollback the changes and restore the network before consulting with my manager. This helped minimize downtime and prevented potential data loss.
• 14. How would you handle a security breach?
  Answer: I would immediately isolate the affected systems and gather all necessary information about the breach. Then, I would involve the appropriate teams and remediate the issue by implementing security measures and protocols to prevent any further breaches.
• 15. How have you resolved conflicts within a team?
  Answer: I believe in open communication and encourage team members to express their concerns and opinions. I would listen to all parties, identify the root cause of the conflict, and work towards finding a solution that satisfies everyone. If necessary, I would involve my manager or HR for further guidance.

Cultural Fit Questions

• 16. How do you prioritize work when dealing with multiple projects?
  Answer: I use a combination of time management techniques, such as setting clear deadlines and breaking down tasks into smaller, manageable chunks. I also regularly review and reassess priorities to ensure timely and efficient completion of projects.
• 17. How do you handle constructive criticism?
  Answer: I welcome constructive criticism as an opportunity to improve and learn. I am open to feedback and use it to constantly evaluate and refine my skills and performance.
• 18. How do you stay motivated in a fast-paced and constantly changing industry?
  Answer: I am passionate about technology and am always eager to learn and adapt to new advancements in the industry. I enjoy the challenge of solving complex problems and am driven by the satisfaction of successfully implementing solutions.
• 19. How do you maintain a work-life balance?
  Answer: I prioritize and plan my tasks to ensure a healthy balance between work and personal life. I also make sure to take breaks and disconnect from work during my off-hours to maintain a positive work-life balance.
• 20. Why do you believe you would be a good fit for our company culture?
  Answer: After researching your company and speaking with current employees, I feel that your company culture aligns with my values and work ethic. I am a team player and value collaboration, open communication, and continuous learning, which I believe are key aspects of your company culture.