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Quiz

2827 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 areas2827 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering90 Security Architecture95 Cost Architecture & FinOps92 Business Architecture93 Architecture Communication91 Enterprise Architecture100 Legacy Modernization92 AI-Era Architecture96 Software Architecture & Engineering93 Architecture Patterns84 Architecture Decision-Making101 The Architect's Meta-Skills92 Delivery & Release Engineering103 Platform Engineering & Developer Experience92 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data93 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

2827 questions.

  1. Healthcare Data Protection intermediate Multiple choice

    At 02:40 the access-audit service behind an electronic health record starts taking 8 s per write instead of 12 ms. It returns no errors. Audit controls at 45 CFR 164.312(b) are a required implementation specification under the HIPAA Security Rule. What should the record system do while the audit path is degraded?

    3 min answer hipaaaudit-loggingfail-opengraceful-degradation
  2. Healthcare Data Protection advanced

    Why does health data access emphasise auditing over prevention, and what does that require architecturally?

    2 min answer healthcarebreak-glassauditconsent
  3. Hexagonal Architecture advanced

    A communications platform integrates many external providers. How does a ports-and-adapters structure help, and what is the design mistake that negates it?

    2 min answer hexagonalports-adaptersanti-corruptionproviders
  4. Hexagonal Architecture intermediate

    A team applies hexagonal architecture and finds it adds ceremony without benefit. When does the pattern earn its cost?

    2 min answer hasurahexagonalports-adaptersabstraction
  5. Hexagonal Architecture intermediate Multiple choice

    What does hexagonal architecture give you that a conventional layered design does not?

    2 min answer hexagonalports-adapterstestingsymmetry
  6. Horizontal vs Vertical Scaling intermediate

    A service is at capacity. When is vertical scaling the better answer than horizontal, and what is the trap in each direction?

    2 min answer unacademyscalingverticalhorizontal
  7. Horizontal vs Vertical Scaling advanced

    A stateful service runs on 16 large nodes, each holding a large in-memory working set. You must move to 200 small nodes under live traffic, for finer failure granularity and better bin-packing. Sequence the migration, and say what changes that nobody plans for.

    3 min answer scalingpartitioningcache hit ratefan-out
  8. Horizontal vs Vertical Scaling intermediate Multiple choice

    A workspace product's primary database is at its limits. Should it scale vertically, add replicas, or shard? What order and what evidence?

    2 min answer scalingverticalshardingreplicas
  9. Horizontal vs Vertical Scaling intermediate

    When is vertical scaling the better answer, and what makes horizontal inevitable eventually?

    2 min answer scalingverticalhorizontalavailability
  10. HTTP/1.1, HTTP/2 & HTTP/3 intermediate

    A platform is considering moving customer traffic to HTTP/3. What does it actually improve, for whom, and what does it complicate?

    2 min answer vercelhttp3quicmobile
  11. HTTP/1.1, HTTP/2 & HTTP/3 intermediate Multiple choice

    A team upgrades to HTTP/3 and median page load time is unchanged. Was the upgrade worthless?

    2 min answer http3quictail-latencymeasurement
  12. HTTP/1.1, HTTP/2 & HTTP/3 advanced

    A video platform moves from HTTP/2 over TCP to HTTP/3 over QUIC. Which specific problems does this solve for video delivery, and what new operational costs appear?

    2 min answer http3quichead-of-line-blockingmobile