Quiz
2908 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 areas2908
Architecture Fundamentals91
Distributed Systems101
Data Architecture90
Cloud Architecture87
Networking86
API & Integration Architecture87
Reliability & Resilience99
Observability92
Performance & Capacity Engineering100
Security Architecture95
Cost Architecture & FinOps102
Business Architecture103
Architecture Communication102
Enterprise Architecture100
Legacy Modernization92
AI-Era Architecture96
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
2 questions in Push & Background Work.
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Push & Background Work advanced
Design push and background work for a chat application delivering to hundreds of millions of devices.
2 min answer pushnotificationsfanoutbattery -
Push & Background Work advanced
JioStar reported a peak of 55.2 million concurrent viewers on JioHotstar for the 2025 IPL final. Take a platform of that shape. At the last ball, product wants a "match won" push sent to 120 million installs carrying a deep link into the highlights screen. Video is on a CDN and the API tier is sized for 1.5x the match-time peak. What happens in the first 90 seconds after the send begins and what stops it?
4 min answer hotstarpush-notificationsthundering-herdfan-out