You are going tog et question based on the job requirements as put forth in the job posting. You are also goin to get questions based on the experience that you claim to have on your resume.
There is no way to "study" or prepare for an interview. You either know the information or your don't. You may get questions that a person of your level of experience probably wouldn't know the answer to. These types of questions may be asked to determine your exact level of experience, or to determine how you handle a situation you aren't prepared for/haven't experienced before.
A good interviewer will be able to tell a canned/prepared response before you even finish your answer. If you don't know the answer, don't try and BS your way through. You won't get any brownie points for this.
In general, I would expect questions about setup, configuration, maintenance, management, and troublshooting for all programs listed in the job posting. I would also expect questions dealing with the same issues as far a a network in general.