"Full stack engineering interviews consist primarily of technical questions. Because full stack developers work with both back-end and front-end code, you should feel comfortable working with a variety of languages and answering questions ranging from databases and web servers to HMTL and UI implementation."
How would you build a BART train system.
Various infrastructure, logic, and fail safe issues. Caching, redundancy, customer experience handling in case of failures.
I would identify and address all of the various infrastructure, logic, and fail safe issues as well as design systems to handle caching, redundancy, and customer experience handling in case of failures.