Quiz

2667 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 areas2667 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 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

87 questions in Cloud Architecture.

Quiz

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

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?

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.

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

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.

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

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

A GPU platform has a few very large jobs competing with thousands of small ones. How should scheduling fairness, fragmentation, bin packing, preemption, queueing and starvation shape the architecture?

A compute platform schedules GPU jobs with execution times ranging from minutes to weeks, where large jobs need many co-located accelerators. What happens if the scheduler uses simple first-come-first-served with best-fit packing?

A device-testing platform receives a burst of tens of thousands of test sessions after a major framework release. How should queues, worker pools, concurrency limits, resource classes, scheduling fairness and backpressure prevent capacity exhaustion?

A fleet of 200 instances averages 15% CPU and 85% memory. Finance wants a 40% cost reduction. What do you do?

A workload runs continuously at moderate load. Finance asks why the serverless bill is four times the previous instance cost. Explain the crossover and how you would calculate it.