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 Distributed Tracing.

Quiz

A marketplace adopts distributed tracing but engineers rarely use it during incidents. What typically causes low adoption, and what makes tracing actually useful?

A request takes 3 seconds. Every individual service reports healthy latency. How does tracing resolve this and what must have been instrumented?

A team enabling distributed tracing must decide between head-based and tail-based sampling. Compare them, and explain what makes traces useful beyond a single request's timeline.

You are introducing distributed tracing across 40 services owned by 12 teams. Plan the adoption.