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Quiz

2667 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 areas2667 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 Architecture86 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 Architecture88 Streaming & Real-Time Data93 Data Governance & Semantics81 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk88
Difficulty Any beginner intermediate advanced

51 questions in API & Integration.

  1. Integration Patterns advanced

    A financial-data aggregator normalises hundreds of external bank APIs behind one interface. Where should the abstraction stop, and what happens when a provider does not fit?

    2 min answer plaidanti-corruption-layernormalisationintegration
  2. Integration Patterns advanced

    A travel platform aggregates supply from hundreds of partners with wildly different protocols, latencies and reliability. Which integration patterns apply, and what is the most common structural mistake?

    2 min answer integration-patternsadaptersaggregationanti-corruption-layer
  3. Integration Patterns advanced

    Review this integration layer. An enterprise platform of SAP's shape defines a canonical Customer with 140 fields. Sixty source systems map into it and forty consumers read from it. Onboarding a new partner takes six weeks, most of it mapping. What would you remove, what would you change, and what would you keep?

    3 min answer sapcanonical data modelintegrationcoupling
  4. Legacy Integration advanced

    A core mainframe system with no API supports nightly batch file exchange only. The business needs near-real-time order status. Design the integration.

    2 min answer legacycdcanti-corruption-layerstrangler
  5. Legacy Integration advanced

    An insurance platform must integrate with a legacy policy administration system with a rigid data model and batch-only interfaces. How should the boundary be designed?

    2 min answer digitlegacyanti-corruption-layerbatch
  6. Legacy Integration advanced

    The system of record updates nightly and cannot be changed. Product teams need to build against it. Design the integration.

    2 min answer legacymainframeprojectionwalmart
  7. Message Formats advanced

    A producer team wants to rename a field in a published event schema. What do you tell them and what makes the answer enforceable?

    2 min answer schema-registrycompatibilityavrolinkedin
  8. Pagination & Filtering advanced

    A discussion platform paginates a feed whose ranking changes continuously as votes arrive. Offset pagination shows duplicates and gaps. What are the options, and what does each cost the product?

    2 min answer paginationcursorsrankingfeeds
  9. REST Design advanced

    A new platform must serve a public partner API, three internal front-ends with different data needs, and high-volume service-to-service traffic. Choose the API styles and defend the choice.

    2 min answer restgraphqlgrpcapi-strategy
  10. REST Design advanced

    A partner integration issues PATCH requests with JSON Merge Patch semantics. On Tuesday one partner's nightly sync cleared the phone number on 40,000 customer records. The requests were valid, your service applied them correctly, and no error was returned anywhere. What happened, and what do you change?

    3 min answer restjson merge patchfield maskdata loss
  11. Webhooks advanced

    A billing platform must deliver events to thousands of customer endpoints with wildly varying reliability. What guarantees should it offer, and what must it require of consumers?

    2 min answer chargebeewebhooksat-least-oncedelivery
  12. Webhooks advanced

    A communications platform delivers webhooks to customer endpoints that are frequently slow, occasionally down, and sometimes process the same event twice. Design the delivery system and state the guarantee you can honestly publish.

    2 min answer webhooksretriesat-least-oncedead-letter