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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

2741 questions.

  1. Load Balancing intermediate

    Every deployment produces a small spike of 502s that the team has learned to ignore. Fix it.

    2 min answer drainingdeploymentgraceful-shutdown
  2. Cloud Migration advanced

    A lift-and-shift migration produced a cloud bill 2.5 times the data-centre cost it replaced. What do you examine first and what is the fastest meaningful reduction?

    3 min answer migrationcostrightsizingegress
  3. Cloud Migration advanced

    A travel platform must migrate a large legacy booking system to cloud services without a big-bang cutover. Design the migration using a strangler approach, and identify what makes data the hard part.

    2 min answer migrationstrangler-figanti-corruption-layerdata-sync
  4. Cloud Migration advanced

    You are asked to lead a migration of 300 applications to cloud. What happens in the first ninety days?

    2 min answer migrationdiscoverysequencingwaves
  5. Cloud Pricing Models beginner Multiple choice

    A CI platform launches a fresh virtual machine for every job. 40000 jobs a day each do about 25 seconds of real work, yet the compute line is roughly four times the total job time. Nothing is throttled and the instance family is correct. Where is the money going?

    2 min answer cloud-pricingbilling-incrementsciwaste
  6. Cloud Pricing Models intermediate

    A live-streaming platform at Twitch's scale is sizing the bandwidth bill for a new regional tier. Sustained outbound is 40 Gbps with peaks near 120 Gbps. Estimate the monthly cost on cloud list egress against a committed CDN contract, and say which assumption dominates the error.

    3 min answer twitchegresscdnbandwidth
  7. Cloud Pricing Models intermediate Multiple choice

    A media platform's workload is bursty rendering plus steady serving. Which pricing models fit which parts, and what is the common mistake?

    2 min answer pricingcommitmentsspotserverless
  8. Cloud Pricing Models beginner

    From 1 February 2024 a major cloud provider began billing every public IPv4 address at roughly $0.005 per address-hour. Your estate runs about 2000 instances plus managed databases, load balancers and per-branch preview environments. Roughly what did that add per year, and what should change because of it?

    3 min answer cloud pricingipv4estimationorphaned resources
  9. Cloud Storage intermediate

    A design platform stores billions of user assets and rendered outputs, where a small fraction are accessed constantly and most are never accessed again after the first week. Design the storage architecture.

    2 min answer object-storagetieringlifecyclecdn
  10. Cloud Storage intermediate Multiple choice

    A product serves user-uploaded images in twelve renditions across devices. Precompute all renditions on upload or generate on demand and cache?

    2 min answer storagecdnrenditionspinterest
  11. Cloud Storage intermediate

    Choose storage for four workloads: a Postgres data directory, user-uploaded images, a shared build cache, and seven years of audit records.

    2 min answer storageblockobjecttiering
  12. Cluster Architecture advanced

    A Kubernetes platform shows GPU utilisation below 40% because jobs request whole nodes. How should bin packing, gang scheduling, preemption, partitioning and queue-based admission raise utilisation without harming priority jobs?

    3 min answer kubernetesgpuschedulingutilisation