Second Interview Question:

Whereas a first interview is generally used to test your personality and basic abilities, the competition intensifies when it comes to the second stage.
What an employer really wants to know now is what separates you from the other candidates, what your technical abilities are, and the logistics involved when it comes to a firm offer. This way they can more easily make a direct comparison between remaining candidates.
In addition, second interviews are often an opportunity for other key members of staff at a prospective employer to meet and question a shortlist of the best candidates.