Do you know which data types are supported by AIDL?

This is an interesting question in that the interviewer is asking a specific question using an acronym that they assume you are familiar with. This is a more complex technical question and is likely to be asked later in the interview as the interviewer gains confidence in your capabilities and strives to learn more about your background in greater detail. Complex technical questions should be answered in the same manner as the simpler ones, briefly, using simple, easy-to-understand language.