1 Online/ Telephonic interview mostly you are given an hours time to solve 2-3 coding problems. This round could also include MCQs with topics covered from data structures, algos, networking, dbms, oops.
Technical Interviews candidates are required to be thorough with their CS fundamentals: Data structures, algos, Scalability, Object Oriented Design. Also questions from your resume and previous projects can be expected.
System Design Interview you can expect system design problems based on your experience level.
1 HR Interview Questions about your personal and academic background, Projects related questions and challenges faced.
Where to Prepare
Coding rounds: Material in the programming section of InterviewBit is pretty comprehensive. For your reference, the section below has some of the questions which are frequently asked in LinkedIn's Interview. Make sure to try and solve most of them.