You now understand what system design interviews test.
Interviewers evaluate problem exploration, high-level design, technical depth, and communication.
Your interview flows from requirements to high-level design to detailed analysis.
Expectations increase with level. means driving the conversation. means teaching your interviewer.
Common failures: jumping to solutions, missing trade-offs, staying silent, over-engineering, under-engineering.
Next, you'll learn a framework to structure your approach.