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

4 questions in Modularity.

Quiz

A developer platform composes Postgres, an auth service, storage, realtime subscriptions and an auto-generated API into one product. What makes that modular rather than merely multi-component, and what is the test?

A startup with 20 engineers and steady moderate traffic proposes moving to microservices to prepare for growth. What would you recommend and under what conditions would you change your mind?

A team is splitting a monolith into services. How do you decide where the boundaries go?

A travel platform integrates hundreds of suppliers, each with different APIs, latencies, reliability and data quality. How should modularity be applied, and what specifically goes wrong in platforms that get this boundary wrong?