Monotlith - Mono means 1, microservices = many. In monolith, there is a single interaction layer - so there will be FE -> BE -> DB ( single BE, which contains the whole service code, and business logic), whereas in microservices, there are separate services catering to different areas of applications.
Understanding the question and being relevant to the question while answering is also very important in an interview. For example- Exploratory testing, CICD integration among others.. answers to these questions should have been more relevant...
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