Microsoft Developer interview questions

during my big interview, I had 4 different interview with four difderent people. they were very polite and helpfull so you feel relaxed during the interview. they asked some questions which should be done using linkedlist, quicksort. besides one of them asked about how I can test my code and what kind of things should be important for testing.. they also asked for about what is race condition, scaliability of project, testing techniques, agile methodologies..