Quiz

2627 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 areas2627 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture77 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 Performance & Capacity Engineering90 Security Architecture85 Cost Architecture & FinOps82 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization82 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 Service Discovery.

Quiz

A mobility platform grows from a monolith to hundreds of services and finds that client-side load balancing libraries in five languages behave inconsistently during failures. What architectural move addresses this, and what does it cost?

A multi-tenant SaaS platform uses a service registry for discovery. The registry becomes unavailable during an incident. What should happen to running traffic, and what does that requirement imply about the design?

Every deployment produces a 30-second burst of connection errors, even though the new instances are healthy. The registry shows correct data. What is the most likely cause?

Your service registry becomes unavailable. Every service is healthy. What happens, and what should happen?