You’re going to be answering questions, and they’re not all going to be simple “Do you know Unix?” See Chapter 9, Handling the Tough Interview Questions for in-depth discussion of these and others, but at the very least be able to answer the following questions as they relate to the specific job and company:
Tell me about yourself.
What do you know about our company?
What is your greatest strength?
What is your greatest weakness?
Why do you want to work for us?
Why should we hire you?
Where do you see yourself in five years?
You’re going to get every one of these questions, or a variant of them, in the interview. Know how you’re going to answer.