Samsung

Firstly, there will be a test on their system. The test will be of 3 hours' duration. If your test gets submitted, you will have two rounds of personal interviews. In the first round, they will ask questions related to Data Structures and Algorithm

Only an advanced coding test, with no interview initially. If failed, then an intermediate test and DS questions will be asked, followed by a very easy intermediate-level test, and then HR.

It was good. Ask operating system questions, including topics like pages and deadlock, and Object-Oriented Programming (OOP) based questions. There were then 3-4 coding questions, mainly on linked lists and graphs. You can search on GitHub; all quest