IT interviews span a wide range, so employers use them to establish where you sit on the spectrum from support to infrastructure. Expect fundamentals on the OSI model, IP addressing, DNS and DHCP, Active Directory and Group Policy, backup and recovery, and security basics such as least privilege and MFA. Just as important is your troubleshooting method: interviewers want to see that you narrow a problem systematically rather than guessing. The questions below cover both.





