Some questions on linkedin and hashmaps.

Technical round: First question was on one of my projects in resume followed by 2 DSA questions both of easy-medium difficulty. (Valid paranethesis and an array question). Then there were in depth questions on OS particularly deadlock,semaphores, threads and concurrency. There were also some questions on system design (hashing vs encryption, salting, JWT Token, SQL vs NoSQL). I was also asked a question on OOPs and explaining code for multithreading in Java.