The interviewer emailed me after one week.

There were a total of three rounds. The first was with the manager, and the remaining two were with team members.

All interviewers asked various questions on DFT, as this is a DFT intern role. The questions focused on fundamentals.

Interviewers also asked about my resume and my projects, which were on DFT.

1. What is the difference between functional testing and structural testing? Which one is preferred?

2. What is the difference between a normal flip-flop and a scan flip-flop?

3. How is boundary scan performed?

4. What are the different types of faults in DFT? How can they be avoided?

5. How can fault coverage be increased?

6. How are scan values passed during EXTEST?

7. Write a script in Perl to change values in a line.

8. Is structural scan denser or functional scan?

9. If "don't cares" exist in the output of a scan, what is the problem, and how is it solved?

10. What is scan compression?

11. What is the difference between transition delay and path delay?

12. Define SDD.

13. How do you propagate a fault through an AND gate?

14. Define the bridging fault.

15. How is at-speed testing performed?

16. Explain the entire flow of DFT.