Cheat Sheet
| Question | Core Idea | Senior Signal |
|---|---|---|
| Q351 | Product flow | Model user goals, UI states, analytics, accessibility, payment handoff, and rollout trade-offs. |
| Q352-Q353 | Platform and design system | Create leverage through shared primitives, docs, governance, adoption, migration paths, and accessibility quality. |
| Q354 | Performance | Debug with evidence across field data, waterfalls, JavaScript, rendering, APIs, validation, and budgets. |
| Q355 | Migration | Modernize legacy React incrementally with boundaries, tests, flags, observability, rollout, and deprecation. |