Every whiteboard question in this section is graded the same way: four dimensions, each scored 0 to 4, with anchors that separate a vague answer from a specific one. This topic teaches the four-part answer shape that earns 3s, how interviewers probe for the missing parts, how to draw the two diagrams that carry half of every answer, and then grades one complete answer line by line so the rubric stops being abstract. For the generic reasoning method this framework specialises, see The Reasoning Framework.
Lesson | After it you can... |
|---|---|
Open every answer with assumptions, explain the mechanism, compare options, and close with how you would prove it. | |
Predict your own 0 to 4 scores, handle the five standard probes, and draw a block diagram and an address map in minutes. | |
Study a scored 13-out-of-16 answer on interrupt latency and reproduce its structure on a new question. |
Suggested order: top to bottom. Learn the shape first, then the scoring and the drawing habits, then watch the shape earn its marks on a real question. The design-a-SoC topic assumes this framework throughout.
Correctness without stated assumptions, without an options comparison and without verification evidence scores about 2 per dimension: right but generic. The rubric rewards the working, not just the result.