Case interview: I expect these vary depending on your interviewer, but mine was a simple business case and they gave me a code snippet that was meant to be a partial solution to that business case. The interviewer and I discussed what the code was currently doing, if it solved the use case, and what changes we might make to improve it (and also actually making some changes to the code). So it was a combination of code comprehension, code editing, understanding the use case, and critical thinking.
