IT support interviews for freshers rarely expect deep expertise — they're checking whether you understand the fundamentals and can troubleshoot logically. Here are the questions that come up most often.
What Is the Difference Between RAM and ROM?
RAM is temporary memory the computer uses while running programs — it clears when powered off. ROM is permanent storage that holds instructions even without power. A simple, confident answer is enough.
What Is an IP Address vs a MAC Address?
An IP address identifies a device on a network and can change. A MAC address is a fixed, unique identifier built into the device's hardware. Knowing this distinction is a common basic checkpoint.
What Is DNS?
The Domain Name System translates website names (like google.com) into IP addresses computers use to find each other. Explaining it as "the internet's phonebook" is a clear, simple analogy.
A User Says Their Internet Isn't Working — What Do You Check First?
Walk through a logical order: check the physical connection or Wi-Fi status, restart the router if needed, check if other devices are affected, then escalate if the issue is on the network provider's end. Interviewers want to see structured thinking, not a random guess.
Have You Used a Ticketing System Before?
If you haven't, be honest, but mention you're comfortable learning new software quickly — most companies train on their specific tool anyway.
How Would You Explain a Technical Issue to a Non-Technical User?
This tests communication, not just technical knowledge. Practice explaining something technical — like clearing a browser cache — in plain, jargon-free language.
What Would You Do If You Didn't Know the Answer to a User's Problem?
A strong answer: acknowledge it honestly, tell them you'll research or escalate it, and follow up — rather than guessing or leaving them without a resolution.