I received a call from my manager. We went over my CV and arranged for an interview through Webex.

We talked, and they asked about my current experience and some questions on threads, deadlocks, data structures, CSS, and basic JavaScript.

They asked me to write a program for a double linked list and string reversal. They mentioned I could use any language I'm comfortable with.

Regarding string concatenation, how can you write a better concatenation without using existing methods like .concat?

Can a deadlock happen with three threads? The job description has nothing to do with these questions. The concentration was on basics of programming. I was asked to write a double linked list program.

If you are comfortable with string programs and linked list concepts, it is very easy to crack.