The above is all really good advice, and I would just add a little interview technique. Sorry if the following seems like common sense!
Don't be afraid to ask for a moment to think of the best example to a question-it's better to think and prepare than waffle! Also, they will offer you a glass of water. Take it as this can provide thinking time mid answer and also helps if you get a dry throat during the interview. Sounds basic but it really helps!
Oh, and also the question 'what have you been doing for the last 6 months as preparation for CTC' and (assuming you got feedback) 'was our feedback useful/how have you worked on improving, based on the feedback?'