When answering this question it is important to keep in mind that you have reached the interview level based on your resume or your job application. Not everyone who applies for a job actually reaches this point, so obviously you already have some of the qualifications or skills and experience that the employer is looking for in a successful candidate. The way to answer this question in an effective manner is to proceed by expanding upon your qualifications. You should focus on listing the skills and experience that you believe will be required for the job. Also, should go into a little bit more detail by elaborating why you believe each skill would be needed in that job. Remember that you do not have to go into excessive detail, your answer should not be too lengthy, but you do need to make sure that you are able to demonstrate your understanding of the skills that are required and how you would be able to meet those requirements.
This is precisely why it is so important to make sure that you have reviewed the job description in advance of the interview. Ideally, you should have reviewed the job description or posting prior to the interview when you completed the job application or sent in your resume. As a result you should be very familiar with the qualities or qualifications that would be necessary in order for this position to be successful.
You should also be prepared for the fact that there could be a follow-up to this question in which you are asked to describe a situation in which you had to implement those skills. It is a good idea to prepare for this type of follow-up question by giving some thought to how you would be able to utilize those skills in order to be more productive or effective in your position.
Always remember that this is one of the most important questions that you will need to answer in an interview and you should make sure that you make full use of the opportunity to describe why you are the best person for the job based on your skills and qualifications and how they relate to the position. Doing so can help you to gain a strong competitive edge over other job applicants who may be vying for the same position.