It might not be a question you think you should ask a wedding photographer, or any kind of photographer really, during your consult but one you probably should: how are you backing up my photos?
For wedding photography especially you are spending a lot of money to get the end images and while yes it is somewhat your responsibility to backup the photos yourself, any photographer worth their salt should be backing up clients photos for years to come. Things happen, and when a client comes back to you and you still have their images, it will make their day. If you don’t, it will ruin yours.