Questions can be similar for similar positions. They are not difficult, you just need to have common sense. They will call you up by phone, I went through 2 interviews. Each interview had a program staff and representative from HR. They will go through a set of questions.The questions ask about yourself, experience, what ifs, your goals for yourself and why you want to work for the agency. the first interview was getting to know you, the 2nd one was more in-depth, about the job you are applying for. The process took about 1 month to complete, from phone interview to your 1st day of work.