DEA-C01 Data Ingestion and Transformation Practice Question
Network Topology
The exhibit shows the output of describing an Amazon Kinesis Data Stream. A producer is sending records but the consumer is not receiving all records. What is the most likely cause?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The stream has only one shard, causing write throttling
The stream has only one shard, which provides a maximum throughput of 1 MB/s or 1000 records/s for writes. If the producer exceeds this, records will be throttled. The retention period is 24 hours, which is fine. The stream status is ACTIVE. There is no indication of a faulty shard. The consumer might be slow, but the question asks for cause of not receiving all records; throttling due to insufficient shards is a common issue.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The stream has only one shard, causing write throttling
Why this is correct
With one shard, write throughput is limited; exceeding it causes throttling and missed records.
- ✗
The stream is in ACTIVE status, which prevents reading
Why it's wrong here
ACTIVE means the stream is operational.
- ✗
The retention period is too short
Why it's wrong here
24 hours is sufficient for most use cases; records are not being lost due to retention.
- ✗
The hash key range is too wide
Why it's wrong here
The hash key range covers all possible keys; it is not a problem.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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