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Quiz

2627 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 areas2627 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture77 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 Performance & Capacity Engineering90 Security Architecture85 Cost Architecture & FinOps82 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization82 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

981 questions.

  1. Accessibility Architecture intermediate Multiple choice

    A single-page application replaces the page content when the route changes. Sighted users see a new page. A screen-reader user hears nothing, and their keyboard focus is now at the top of the document. Which change fixes this at the right level?

    3 min answer accessibilityspafocus-managementlive-regions
  2. Accessibility Architecture intermediate

    An accessibility audit finds that a custom dropdown is unusable with a screen reader. It passed automated checks. Why, and what is the systemic fix?

    2 min answer accessibilitycomponentsdesign-system
  3. Accessibility Architecture intermediate

    The European Accessibility Act became enforceable on 28 June 2025 and applies to consumer services including online shops and banking, with EN 301 549 as the harmonised standard referencing WCAG level AA. A team with 11 applications proposes moving accessibility into its design system rather than fixing each application. What does that buy, what does it pay, and where does it stop working?

    3 min answer accessibilitydesign-systemeaawcag
  4. Accessibility Testing intermediate Multiple choice

    A public-sector organisation runs 40 services on a shared component library and must meet WCAG 2.2 AA. An automated scan in each service's pipeline reports no violations, and an external audit finds 60 issues, most of them keyboard traps and focus-order problems in shared components. Where should the verification effort be placed?

    3 min answer accessibilitywcagdesign-systemcomponent-library
  5. Accessibility Testing intermediate

    Review this setup at a ticketing platform in the mould of Ticketmaster. Every design-system component carries unit tests plus an automated accessibility check and all of them pass. The queue page announces "you are number 12000 in line" through a polite live region updated every two seconds. An external audit fails the checkout flow on focus order and on announcements. What would you change, and what would you leave alone?

    3 min answer ticketmasteraccessibility-testinglive-regionsfocus-management
  6. Accessibility Testing intermediate

    What can be tested automatically for accessibility, what cannot, and what is the architectural dimension?

    2 min answer accessibilityautomationdesign-systemstesting
  7. Accessibility Testing intermediate

    Your automated accessibility scan reports zero issues. Legal asks whether the product is compliant. What is your answer?

    2 min answer accessibilitycompliancetesting
  8. Architecture Decision Records intermediate Multiple choice

    A 60-engineer platform organisation of nine teams is introducing decision records and leadership asks what a healthy annual volume looks like so they can tell whether the practice is working. Roughly how many records should they expect per year?

    2 min answer adrdecision-recordsestimationgovernance
  9. Architecture Decision Records intermediate

    A team writes decision records diligently and nobody reads them. What is wrong with the practice rather than the format?

    2 min answer adrdiscoverabilityrationalepractice
  10. Architecture Decision Records intermediate

    An interviewer asks you to pick an architectural decision your team made in the last year and write its decision record on the whiteboard, then hands you a fact partway through that would have changed the choice. What is being assessed, and how should you work through it?

    3 min answer adrdecision-recordsinterviewcontext
  11. Architecture Decision Records intermediate

    Review this decision log. It holds 140 records over four years in the repository. 31 are marked superseded and 9 of those name no successor. Two records state conflicting positions on the same message bus and both read "accepted". The template has a Consequences heading that is empty in 96 records. A new engineer asked what the current position on async messaging is and spent half a day finding out. What would you change, what would you remove, and what would you leave alone?

    3 min answer adrsupersessiondecision-lognavigability
  12. Architecture Decision Records intermediate

    Your team writes ADRs and nobody reads them. What is wrong with them?

    2 min answer documentationdecisionspractice