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Quiz

2777 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 areas2777 Architecture Fundamentals81 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-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 Architecture99 Assurance, Audit & Model Risk98
Difficulty Any beginner intermediate advanced

2777 questions.

  1. Design Systems intermediate

    A design system is adopted and product teams still build their own components. What is the diagnosis?

    2 min answer postmandesign-systemadoptionescape-hatch
  2. Design Systems intermediate

    Three product teams have forked the design system to meet deadlines. Components have diverged. How do you recover?

    2 min answer design-systemadoptiongovernance
  3. Design Systems beginner Multiple choice

    Two applications in the same company ship what should be the same primary button, and after a rebrand the shades differ by one step. A third application's button is the old colour entirely. What is the underlying cause, and which change prevents recurrence?

    3 min answer design-tokensdesign-systemsdriftgovernance
  4. Design Systems intermediate

    Your design system is used by three of eleven applications. The other eight built their own components. What do you do?

    2 min answer design-systemadoptionfrontendplatform
  5. Developer Environments intermediate

    A payments change passes its per-PR ephemeral environment and staging. Twenty minutes after the production deploy checkout p99 goes from 300 ms to 9 s and the database shows lock waits on one table. The ephemeral environment ran the same image and the same migration. What failed and which decision made the failure possible?

    3 min answer ephemeral environmentsparitylock contentiontest data
  6. Developer Environments intermediate

    A platform team proposes moving the inner loop into cloud development environments, so engineers edit locally and everything builds and runs remotely. What is gained, what is paid, and when does the bill arrive?

    2 min answer developer experiencecloud environmentscostlatency
  7. Developer Environments intermediate

    Developers spend significant time getting their local environment working and it frequently breaks. What should the platform provide?

    2 min answer developer-experienceenvironmentsinner-loopreproducibility
  8. Developer Environments intermediate

    Ephemeral preview environments were a success. The cloud bill has tripled. What went wrong?

    2 min answer finopsenvironmentsplatform
  9. Device Identity advanced

    A fleet of devices has certificates expiring in two years. What must be true today for that not to be an incident?

    2 min answer device-identityrotationprovisioningrevocation
  10. Device Identity advanced

    Design identity for devices that must authenticate to a platform for years, without a human present.

    1 min answer device-identitycertificatesrotationprovisioning
  11. Device Identity advanced

    How should device identity be established and maintained for a fleet, and what fails when it is done casually?

    2 min answer iotidentityprovisioningattestation
  12. Device Identity intermediate

    Review this design. A delivery-partner app on low-end Android phones reads a device identifier from the operating system at launch and uses it as the primary key of a devices table. The row holds the partner's current shift, an offline cash ledger and a per-device fraud limit. The identifier is Android SSAID or iOS identifierForVendor depending on platform. What would you remove, what would you change, and what would you leave alone?

    3 min answer device-identityandroidiosfraud