Round 1: Online HackerRank test. Got 3 questions (1 SQL + 2 arrays questions). Don't remember the questions, though they were easy. Got through that round and received a call for selection in further rounds.

Round 2: One easy string question to find all strings which are anagrams. Then a few networking questions and Linux commands.

Round 3: One hard binary tree question - boundary traversal of a binary tree. Fortunately, was asked just the approach. Then 2 puzzles relating to coins and some more networking and OS questions.

Round 4: One easy arrays question - given an array like [-6, -5, -4, 0, 1, 2, 3, 5], print it in ranges like -6 to -4, 0 to 3, and 5. After that, some Linux commands, OS, and networking questions.

What does a process look like in memory?