DEA-C01 Data Ingestion and Transformation Practice Question
A data engineer needs to ingest streaming data from an e-commerce application into Amazon S3 for near-real-time analytics. The solution must handle variable throughput and allow reprocessing of failed records. Which TWO AWS services should the engineer use? (Choose two.)
⚠ Common exam trap
Many candidates confuse Amazon SQS with a streaming service, but SQS is a pull-based queue with no replay capability, whereas Kinesis Data Streams provides the persistent, replayable stream needed for reprocessing failed records.
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
✓
Amazon Kinesis Data Streams
Amazon Kinesis Data Streams is correct because it provides a durable, scalable, real-time data ingestion layer that can handle variable throughput by sharding, and it retains data for up to 365 days, enabling reprocessing of failed records by replaying from a specific sequence number or timestamp.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Amazon Kinesis Data Streams
Why this is correct
Kinesis Data Streams ingests and stores streaming data in shards for real-time processing.
- ✗
Amazon SQS
Why it's wrong here
SQS is a message queue service, not designed for high-throughput streaming ingestion.
- ✗
Amazon DynamoDB Streams
Why it's wrong here
DynamoDB Streams captures changes to DynamoDB tables, not general streaming data.
- ✓
Amazon Kinesis Data Firehose
Why this is correct
Kinesis Data Firehose delivers streaming data to S3 with automatic buffering, compression, and retry.
- ✗
Amazon RDS
Why it's wrong here
RDS is a relational database, not a streaming ingestion service.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DEA-C01 exam.