It Support Engineer Interview Questions

3,348 it support engineer interview questions shared by candidates

Explain the difference between TCP and UDP. How do you troubleshoot a PC that won’t boot? What steps would you take if a user reports slow network performance? Describe the process of joining a computer to a domain. What is DNS and why is it important? How do you handle a printer that is not responding on the network? Explain the difference between Active Directory and LDAP. What is the purpose of Group Policy in Windows environments? How do you reset a forgotten Windows password? What is the difference between RAID 0, RAID 1, and RAID 5?
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IT Engineer

Interviewed at TE Connectivity

4
Dec 10, 2025

Explain the difference between TCP and UDP. How do you troubleshoot a PC that won’t boot? What steps would you take if a user reports slow network performance? Describe the process of joining a computer to a domain. What is DNS and why is it important? How do you handle a printer that is not responding on the network? Explain the difference between Active Directory and LDAP. What is the purpose of Group Policy in Windows environments? How do you reset a forgotten Windows password? What is the difference between RAID 0, RAID 1, and RAID 5?

Spin up a docker container (SLES15-based image) Make the container print out the kernel version Make the container stay alive Bash into the container and install nginx Make nginx serve a simple web page Commit container Spin up the new image Verify that nginx does indeed serve the created webpage
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IT Support Engineer

Interviewed at SUSE

3.9
Aug 25, 2020

Spin up a docker container (SLES15-based image) Make the container print out the kernel version Make the container stay alive Bash into the container and install nginx Make nginx serve a simple web page Commit container Spin up the new image Verify that nginx does indeed serve the created webpage

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