AWS Certified Data Engineer Associate DEA-C01 Practice Question

An AWS Glue streaming job can act as a registered Enhanced Fan-Out (EFO) consumer on the Kinesis Data Streams stream. EFO allocates each consumer a dedicated outbound throughput of up to 2 MB/s per shard with sub-second latency, so the Glue job will not share the 2 MB/s per-shard limit imposed on standard GetRecords calls and therefore avoids throttling the other consumers. Glue's streaming job natively supports EFO, allows in-stream enrichment, and writes directly to Amazon S3, satisfying latency and isolation requirements.

Kinesis Data Firehose does not guarantee sub-second latency and offers only limited, Lambda-based transformation, making it unsuitable for complex enrichment needs. A custom polling application that uses GetRecords would contend with existing consumers for the same 2 MB/s per-shard limit, risking throttling and increased latency. DynamoDB Streams is unrelated to the Kinesis stream and would not ingest the clickstream data at all.