SIMEN Software Engineer(Internship) interview questions

I got selected after a coding test in our college During interview, round 1 About yourself Prominent programming language Projects Arranging postive to left and negative to right maintaining same order Union of two sorted arrays ( duplicate in same arrays) 2nd round Projects Static keyword in Java Os - process vs thread Delete n th node in linked list Delete n th node from revese in linked list Check if it is a valid BST 3rd round Tell me about yourself Primary programming language Project related questions Integer to binary representation code Given a file with multiple lines of character, Group all the anagrams together Os virtual memory