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Real-time systemsSystem design · Level 3Open topic

Short polling for presenceEasySystem designReal-time systemsSystem designReal-time systemsEasy4 minURL routingEasySystem designReal-time systemsSystem designReal-time systemsEasy3 minImage and video delivery (CDN + transformations)MediumSystem designReal-time systemsSystem designReal-time systemsMedium3 minRead replica routingMediumSystem designReal-time systemsSystem designReal-time systemsMedium3 minGeospatial & location systemsHardSystem designReal-time systemsSystem designReal-time systemsHard3 minAnycast edge routingHardSystem designReal-time systemsSystem designReal-time systemsHard3 minDNS traffic routing (gateway)HardSystem designReal-time systemsSystem designReal-time systemsHard3 minEdge realtime syncHardSystem designReal-time systemsSystem designReal-time systemsHard3 minGraph database shardingHardSystem designReal-time systemsSystem designReal-time systemsHard3 minMQTT: the IoT broker protocolHardSystem designReal-time systemsSystem designReal-time systemsHard4 minMulti-region traffic failoverHardSystem designReal-time systemsSystem designReal-time systemsHard4 minSIP session routingHardSystem designReal-time systemsSystem designReal-time systemsHard3 min

TLS ingress protocol routerHardSystem designReal-time systemsSystem designReal-time systemsHard3 minVPN tunnel service protocolHardSystem designReal-time systemsSystem designReal-time systemsHard3 min