Portfolio ↗

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. Hydration Cost advanced

    A page renders quickly but is unresponsive for several seconds after appearing. What is happening, and what are the architectural responses?

    2 min answer hydrationinteractivityjavascriptislands
  2. Hydration Cost advanced

    A server-rendered page uses islands: static HTML with independently hydrated interactive components. In production, one island's hydration throws because a third-party script mutated the DOM before React attached. What does the user see, and what stops it?

    3 min answer hydrationislandserror-boundariesthird-party
  3. Hydration Cost intermediate Multiple choice

    An article page is server-rendered React. Field p75 interaction to next paint is 420 ms on mid-range Android and the main thread is busy for roughly 1.9 seconds after the HTML arrives. Three widgets account for most of the client bundle - a comment thread a video player and a recommendation carousel. Fewer than 5% of readers open comments. Which change gets interaction to next paint under 200 ms with the least risk?

    2 min answer hydrationinpislandscore-web-vitals
  4. IaC Modules & Drift intermediate

    An organisation's infrastructure code has become a sprawl of copied configurations. What module strategy works, and how is drift handled?

    2 min answer iacmodulesdriftreuse
  5. IaC Modules & Drift advanced

    One Terraform state file holds 4,000 resources across networking, databases, Kubernetes and DNS for production. A plan takes 14 minutes, every change risks unrelated resources, and four teams contend for the lock. You must split it into per-domain states without destroying anything. What is the sequence?

    4 min answer terraformstatemigrationblast-radius
  6. IaC Modules & Drift beginner

    You run `terraform plan` on a production workspace where nothing has been committed for three weeks. The plan proposes 23 changes. Nobody has touched the console. Why does this happen, and what should you do about each kind?

    3 min answer driftterraformprovidersdefaults
  7. IaC Modules & Drift intermediate

    Your infrastructure drift detection fires 200 alerts a day. The team has muted it. How do you make it useful again?

    2 min answer iacdriftalerting
  8. IaC Modules & Drift intermediate Multiple choice

    Your manifests are in Git with `spec.replicas: 6` and the reconciler syncs automatically with self-heal enabled. A platform engineer adds a HorizontalPodAutoscaler for the same Deployment with min 6 and max 40. Traffic doubles at 09:00. What happens over the next ten minutes?

    3 min answer gitopsdriftfield-ownershipserver-side-apply
  9. Identity & Access Management advanced

    A workforce platform holds identity, payroll and device management, and integrates with dozens of downstream systems. What is the central security risk and how is it bounded?

    2 min answer ripplingdeelprivilegeintegrations
  10. Identity & Access Management advanced

    An enterprise platform's permission model has grown to thousands of roles and profiles, and nobody can determine what access a given user actually has. What is the diagnosis and the remediation?

    2 min answer iamrbacabacleast-privilege
  11. Identity & Access Management advanced

    Design the break-glass access mechanism for production. What are the requirements?

    2 min answer accessincidentcontrols
  12. Identity & Access Management intermediate

    Forty developers share one service account to access a partner API because the partner charges per credential. What do you do?

    2 min answer identityattributioncontrols