Written test consisting of 5 questions focussing on coding, problem solving, testing, design and debugging respectively. One of the best written exam pattern with the only flaw that questions repeating too soon.

Technical interviews are good focussed on problem solving, algorithms, coding and design. At times questions related to operating systems like semaphores etc are asked. Again questions are generally repeated.

nopes

Programming and problem solving is must. Prepare Operating system and OOPS as well. One key factor prepare the interview questions pool, because your interview questions might be all from them :)

Technical achievements, and good interviews.