I have to ask you. Have you taken the trouble to look at any of the many threads on this forum dealing with interviews? I think not! Otherwise you would have seen that HTBJ is required reading and if you browse and search a bit more you find many other useful references as well as just how deep you need to go! Many other PPRuNers have given hours of their valuable time to produce the relevant information for you and post it here, a shame to waste it, don't you think!?
Best of luck, BE.