Design a Scalable Polling and Survey Platform Frontend

Design a High-Concurrency Online Examination Frontend Platform

Design the frontend architecture for an enterprise-grade Online Examination Platform supporting up to 10,000 concurrent students. The system must operate under unstable network conditions with absolute zero data loss, feature aggressive client-side anti-cheating mechanism (proctoring, tab tracking, and keyboard lockout), load complex multi-media exams instantly, and support deep offline-first capability. Explain how you would structure component hierarchies, implement secure client-side storage, guarantee synchronized updates under heavy load, and optimize rendering interfaces to achieve continuous responsiveness and high accessibility.
ReactTailwind CSSZustandIndexedDBWeb Cryptography APIBeacon APIWeb WorkersREST
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Design a Scalable Polling and Survey Platform Frontend

Design the frontend architecture of a highly scalable, offline-resilient survey and polling platform similar to Typeform or Slido. The system must support two key user experiences: a highly interactive Survey Runner engine that dynamically executes complex skip logic (branching) on the client, and a Live Poll Presentation view that visualizes real-time voting trends under extreme concurrency. Detail your component design, dynamic loading strategy for field inputs, offline queue persistence mechanism, rendering performance optimizations for complex inputs, and accessibility standards to support high-traffic events under weak network conditions.
ReactTailwind CSSZustandIndexedDBServer-Sent EventsTypeScript
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