How to prepare for Fannie/Freddie Lender Interview?

I have an interview coming up with a top agency lender as an analyst, and will be speaking with a few members of the team including producers and underwriters. The position would be in an underwriting capacity. 

I feel prepared in regard to all the basic interview questions, but are there any questions I should be prepared for that relate specifically to agency lending? Or for anyone that works in agency lending right now, what do you want to hear from candidates? What questions should I be asking? Any and all help is appreciated.