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Which architecture pattern handles a sudden 10× write burst from millions of IoT devices without dropping events?
ADevices publish to Amazon Kinesis Data Streams; consumers (Lambda, KDA, EMR) read at their own rate, with replay if needed
BDevices encode events into Route 53 TXT records
CDevices write directly to an RDS instance with a single primary
DDevices send each event to AWS Snowball Edge for shipping later
Answer & Solution
Correct answer: A. Devices publish to Amazon Kinesis Data Streams; consumers (Lambda, KDA, EMR) read at their own rate, with replay if needed
Kinesis is the canonical ingest buffer at IoT scale — high-throughput, ordered, with multi-day retention for replay. A single RDS primary will choke; Snowball is for batch offline transfer; Route 53 isn't an event bus.
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