Don'recall any especially difficult or unexpected, but was asked typical questions about reversing strings, sorting structures, etc. Also got asked about data caching concepts, and probably basic SQL (don't recall).
Sigiloso
It's essential to demonstrate that you can really go deep... there are plenty of followup questions and (sometimes tangential) angles to explore. There's a lot of Senior Software Engineer experts who've worked at Disney, who provide this sort of practice through mock interviews. There's a whole list of them curated on Prepfully. prepfully.com/practice-interviews