Apostek Software Engineer interview questions

There are three interviews and one client interview. More focus on core java, logical thinking and communication. One HR round will be there but nothing much in that round. Can be cracked if the preparation is good.

Round 1 Written test with 5 algo. quest(linked list,array,BST etc) Round 2 TR- basic algo ques with some logic puzzles Round 3 TR- some ques about projects and logic ques Round 4 TR- most easy one just explained about an app I built