Quiz
2707 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 areas2707
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 Architecture96
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 Architecture98
Streaming & Real-Time Data93
Data Governance & Semantics91
Frontend & Experience Architecture91
Edge, Mobile & IoT88
Regulatory & Data Protection Architecture90
Assurance, Audit & Model Risk98
5 questions in OTA Updates.
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OTA Updates advanced
A connected-vehicle fleet needs over-the-air firmware updates. What must the architecture guarantee, and why is this unlike a server deployment?
2 min answer atherotafirmwarerollback -
OTA Updates advanced
A firmware update bricked 4% of a deployed fleet. Each recovery requires a site visit. What went wrong and what prevents recurrence?
2 min answer iotdeploymentresilience -
OTA Updates advanced
A staged over-the-air rollout reaches 100% over two weeks. What happens to the 12% of devices that were offline for the whole window and come back three weeks later on the old firmware?
3 min answer otaversion-skewdesired-statefleet -
OTA Updates advanced
An OTA firmware update has bricked 3% of a 50,000-device fleet. What do you do, and what should have prevented it?
1 min answer iototaincidentrollout -
OTA Updates advanced
Design over-the-air updates for devices where a failed update means a physical service visit.
2 min answer otaupdatesrollbackstaged-rollout