It is open-ended to simulate real customer engagements, where:
Requirements are incomplete or evolving
There is no single correct architecture
Trade-offs must be justified
Assumptions must be documented
This approach evaluates how well a solution architect thinks, plans, and justifies decisions, rather than following predefined steps.
First read the answer fully, then try to explain it in your own words. After that, open a few related questions and compare the concepts. This method helps you remember the topic for a longer time and improves exam preparation.