All the effort you have invested in searching for a job and writing a good CV is done for the purpose of securing a job interview.
You should therefore polish up your interview skills so that none of your effort is wasted. Preparation is the key to success and as much as you prepare yourself to answer questions, you are also trying to validate within yourself whether the job is right for you, and whether would you be happy working for the company or people who interviewed you.
WMRC has put together the following information outlining the objectives of a job interview and how you should prepare yourself to do well in it.