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Quiz

2741 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 areas2741 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience99 Observability92 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 Architecture102 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

1018 questions.

  1. Platform APIs intermediate

    The Hugging Face Hub stored large model and dataset files with Git LFS which versions whole files - appending 1 MB to a 5 GB file re-uploads 5 GB. In 2025 the Hub began moving repositories onto Xet storage which splits content into roughly 64 KB content-defined chunks aggregated into roughly 64 MB blocks so only changed chunks travel. The API developers call did not change. What forced the change and what had to stay stable and where would copying it be a mistake?

    3 min answer hugging facededuplicationstorageplatform api
  2. Platform as a Product intermediate

    A platform team builds capabilities that teams do not adopt. What does treating the platform as a product actually require, and how is adoption measured without mandates?

    3 min answer platform-engineeringadoptionproduct-thinkingpaved-road
  3. Platform as a Product intermediate

    An internal platform is used by 11 of 40 product teams. Leadership mandates it - every team must be migrated by the end of next quarter and the alternative paths are closed. The platform team has 6 engineers. What happens over the following two quarters?

    3 min answer platform-engineeringadoptionmandatesqueueing
  4. Platform as a Product intermediate

    An internal platform team's tools are avoided by product teams who build their own. What does treating the platform as a product change?

    2 min answer platform-as-productadoptionself-servicedeveloper-experience
  5. Platform as a Product intermediate

    Teams are avoiding the internal platform and building their own tooling. What do you conclude?

    2 min answer platformadoptionproduct-thinkingpaved-road
  6. Platform Engineering intermediate Multiple choice

    What distinguishes platform engineering from an internal operations team?

    2 min answer platformself-servicehandoffproduct
  7. Platform Funding intermediate

    A platform group of 9 engineers costs roughly $2.2M a year fully loaded. Its business case says it saves 300 product engineers 25 minutes a day. Finance does not believe the saving. Roughly what is the defensible number, and what does it rule in or out?

    3 min answer platform-fundingbusiness-caseunit-economicsdeveloper experience
  8. Platform Funding intermediate

    A platform team is funded as a cost centre and is being asked to justify itself. What changes if it is funded as a product?

    2 min answer zeptofundingincentivesadoption
  9. Platform SLOs intermediate

    A platform team is about to publish its first commitments to internal consumers - 99.95% monthly availability on the ingress and the config service plus a 15-minute objective for deploys. What does the platform give up by publishing that, and when does the bill arrive?

    3 min answer platform-sloserror-budgetsdependenciesinternal consumers
  10. Platform SLOs intermediate

    Should an internal platform have SLOs, and what should they cover?

    2 min answer dream11platform-sloreliabilitycontract
  11. Platform SLOs intermediate

    Why should a platform publish SLOs to internal consumers, and what should they cover?

    2 min answer platform-slosdependenciesexpectationsavailability
  12. Platform Teams intermediate

    A platform team is overwhelmed by requests and product teams complain about waiting. What does the boundary between them need to change?

    2 min answer platform-teamsself-serviceboundaryrequests