MLA-C01
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A retail company wants to ingest point-of-sale transaction events from 2,000 stores into AWS in real time. Each store generates up to 500 events per minute. The data must be available for ML feature computation within seconds of arrival and retained for 7 days for replay. Which AWS service is most appropriate for this ingestion layer?
Amazon Kinesis Data Streams
Amazon Data Firehose
Amazon S3 with event notifications
Amazon SQS FIFO queue
