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Quiz

2707 questions of the kind that actually get asked — in interviews, in architecture review boards, and by the person who has to run the thing at 3 AM. Every answer states the trade-off rather than the slogan, and says when the obvious choice is the wrong one.

All areas2707 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering84 Architecture Patterns84 Architecture Decision-Making91 The Architect's Meta-Skills92 Delivery & Release Engineering93 Platform Engineering & Developer Experience92 Testing & Quality Architecture90 Data Platform Architecture98 Streaming & Real-Time Data93 Data Governance & Semantics91 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

52 questions in Frontend & Experience Architecture.

  1. Accessibility Architecture advanced

    Six weeks before launch, an accessibility audit returns 200 issues. The team's automated checks were green. Why, and what do you do?

    2 min answer accessibilitytestingcompliancefrontend
  2. Accessibility Architecture advanced

    Where should accessibility live architecturally so it is not a remediation project every year?

    1 min answer accessibilitydesign-systemtestinggovernance
  3. API Shapes for UI advanced

    A developer platform exposes both a resource-oriented API and a graph query API. What does each do well, and what breaks?

    1 min answer api-designgraphqlrestcaching
  4. BFF for Experience advanced

    A team adds a backend-for-frontend per client - web, iOS, Android, partner. Latency and payload sizes improve immediately. What has been given up, and when does that bill arrive?

    3 min answer bffcouplingownershipduplication
  5. BFF for Experience advanced

    A travel platform serves web, iOS, Android and partner integrations from the same services. When is a backend-for-frontend justified?

    1 min answer bffapi-designaggregationcoupling
  6. Client Caching & Data Layer advanced

    A live scoreboard JSON endpoint is cached at the CDN with a 5-second TTL and polled every 5 seconds by each viewer. Peak concurrency for an Indian cricket final is in the range Hotstar publicly reported for the 2019 World Cup semi-final - 25.3 million concurrent viewers. Product wants the payload to include the viewer's own fantasy-team score. Roughly what request rate reaches the origin before and after that change?

    3 min answer cdncache-keyrequest-collapsingpolling
  7. Client Caching & Data Layer advanced

    A quick-commerce app must feel instant while showing inventory that changes constantly. What caching strategy on the client?

    2 min answer zeptoclient-cachestalenessrevalidation
  8. Client Caching & Data Layer advanced

    An image discovery application does heavy infinite scrolling with per-user recommendations. What should the client data layer provide?

    1 min answer client-cachingpaginationinvalidationmemory
  9. Client Feature Flags advanced

    A streaming platform delivers feature flags to clients. What happens when the flag service is slow or unreachable?

    1 min answer feature-flagsavailabilitydefaultscaching
  10. Client Feature Flags advanced

    A web application evaluates feature flags in the browser. A flag is turned on for 10% of users and the new code throws during application start-up, so those users see a blank page. Turning the flag off does not help them. Why not, and what is the structural fix?

    4 min answer feature-flagsbootstrapcrash-loopkill-switch
  11. Client Feature Flags advanced

    How do client-side feature flags differ from server-side ones, and what breaks if you ignore the difference?

    2 min answer feature-flagsclientofflinestaleness
  12. Client State Architecture advanced

    A front-end team wants to replace their global state library because "state management is unmanageable". How do you evaluate the request?

    2 min answer frontendstatearchitecturerefactoring