A company is receiving thousands of IoT sensor readings per second. The data needs to be ingested in real-time, buffered, and then processed by a fleet of Amazon EC2 instances before being stored in a database. The order of the readings per sensor must be maintained. Which service should be used for ingestion?

Answer options:

Amazon Kinesis Data Firehose

Amazon SQS standard queue

Amazon Kinesis Data Streams

Amazon SNS

How to approach this question

Real-time streaming + custom processing + order maintained = Kinesis Data Streams.

Full Answer

C.Amazon Kinesis Data Streams✓ Correct

Amazon Kinesis Data Streams is a massively scalable and durable real-time data streaming service. It can continuously capture gigabytes of data per second. By using the sensor ID as the partition key, Kinesis ensures that all records from a specific sensor go to the same shard, maintaining strict order.

Common mistakes

Confusing Kinesis Data Streams (custom processing) with Kinesis Data Firehose (direct delivery to storage).

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