Quiz

2948 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 areas2948 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking96 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data103 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98

Difficulty Any beginner intermediate advanced

4 questions in Waste Elimination.

Quiz

A cleanup deletes 2000 orphaned volume snapshots whose reported sizes total 60 TB. On the next full invoice the snapshot line falls by about 5%. The snapshots really are gone and billing has caught up. Where is the saving?

A platform wants to eliminate infrastructure waste. What are the highest-return categories, and which apparent waste should be left alone?

A platform's infrastructure is over-provisioned but nobody can say by how much. What is the systematic approach to finding and removing waste?

How would you identify workloads that are running and serving no purpose, and how would you make removing them safe?