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Quiz

2707 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 areas2707 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 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 Architecture90 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

6 questions in Platform Engineering.

  1. Container Image Strategy beginner Multiple choice

    An inference service's container image is 6.2 GB because the model weights sit in the final layer. Autoscaling adds twelve fresh nodes at peak; the new pods stay NotReady for several minutes and other pods scheduled onto the same nodes wait behind them. What is happening and which change helps most?

    3 min answer container imagesimage pullcold startautoscaling
  2. Inner Loop & Outer Loop beginner Multiple choice

    Two teams own the same test suite. Team A can run the relevant tests locally in 40 seconds. Team B's only way to run them is a 9-minute pipeline. Team B's pull requests are about four times larger and when a test fails they take far longer to work out which change caused it. What is the mechanism connecting feedback time to those two outcomes and which change helps most?

    3 min answer inner loopfeedbackbatch sizetesting
  3. Platform APIs beginner

    A platform team argues that their internal API needs no versioning because every caller is inside the company and can be found with a code search. What is wrong with that reasoning?

    2 min answer internal apiversioningcouplingdeployment
  4. Platform Engineering beginner Multiple choice

    A platform injects a log-shipping sidecar with a 128 MiB limit into every pod. During an evening peak the sidecar's in-memory buffer grows faster than it can flush, the pod exceeds its limit, the kubelet kills the container and a product team's checkout service drops requests for eleven minutes. Whose reliability budget is spent and what does that imply about how the platform ships that sidecar?

    3 min answer sidecarownershipon-callresource limits
  5. Platform Team Topologies beginner Multiple choice

    Six platform engineers support forty product teams. Each team raises roughly 1.5 requests a week and each request costs about 90 minutes of an engineer's time once the context switch is counted. Roughly how much of the team's capacity is interrupt work and what does that number rule in or out?

    2 min answer platform teaminterruptscapacityteam topologies
  6. Self-Service Provisioning beginner Multiple choice

    Provisioning a database on this platform takes about 4 engineer-hours of real work. The median request takes 6 working days end to end. The platform team of 5 is fully occupied. Why is the lead time roughly twelve times the work time and which change reduces it most?

    3 min answer self-servicequeueinglead timeticket ops