Classics Admissions Test, 2x interviews
Interview 1: Questions on personal statement and interests, Questions on pre-read Latin source, Review of admissions test; Interview 2: Exercises in logic and ethics
Considered interests in classics and its personal importance
Revised vocabulary from past papers and spec
Make sure to demonstrate your passion for the subject
Remember this advice isn't official. There is no guarantee it will reflect your experience because university applications can change between years. Check the official Cambridge and Oxford websites for more accurate information on this year's application format and the required tests.
Also, someone else's experience may not reflect your own. Most interviews are more like conversations than tests and like, any conversation, they are quite interactive.
Test taken:
Number of interviews: 2
Time between interviews: 1 hour
Length of interviews: 45 minutes
Online interview: Yes
First (in my Classics interview), the tutors and I introduced ourselves to one another, followed by a few questions about my personal statement and my interests within the subject. Then, some questions were asked about a Latin text which had been sent to me by e-mail 10 minutes before the interview. The tutors concluded, after briefly going over some parts of the admissions test, by asking a seemingly unrelated yet quite relevant question (which should be very easy to answer).
My Philosophy interview consisted of exercises in logic and propositions in the realm of ethics, with great freedom to respond in any way I wanted. Overall, the tutors were very considerate, making it quite possible to form some kind of answer even to the more difficult and unexpected questions. I don't recommend trying to guess exactly what will be asked of you, since you probably cannot. An open attitude and a desire to express your love for the subject is in my opinion the most important.
Quite frankly I didn't prepare very much subject-wise, since there is just an incredibly broad pool of questions that might be asked. I just focused on the things I love about my subject and explaining (if prompted) the impact they had had on my life so far.
As for the more specific questions, I tried to relax as much as possible (which wasn't very much admittedly) and keep an open mind in order to think about a question from multiple perspectives.
Revising vocabulary from lists, past papers (first untimed and then timed), starting to translate Latin/Greek into English as opposed to my native language
If you've applied to Oxbridge, you love your subject very much. Show this by talking passionately about what you already know and by readily immersing yourself in what you don't know yet, and you should be all right.
The tutors have typically seen everything already, so it is not necessary or possible to impress them. Flexibility should bring you further than rigid rehearsal of what you are going to say.