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

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4 questions in Bottleneck Analysis.

Quiz

A marketplace's search page is slow. CPU is moderate, memory is fine, and the database reports healthy query times. How do you find the bottleneck?

A service's p99 latency has tripled over three months with no single obvious change. How do you investigate?

CPU, memory, disk and network all look healthy, and the service will not go faster. What are you looking for?

p99 latency on the booking endpoint jumped from 300 ms to 4 s at 09:00 today. Error rate is normal. Walk through your diagnosis.