DEA-C01 Data Ingestion and Transformation Practice Question
A company receives streaming clickstream data from its website. The data must be ingested with low latency and transformed in real time before being stored in Amazon S3. Which AWS service combination is most suitable for this use case?
⚠ Common exam trap
Many candidates confuse Kinesis Data Firehose (which is near-real-time with a 60-second minimum buffer) with true low-latency streaming, leading them to select Option C despite the explicit 'low latency' requirement in the question.
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 with Amazon Kinesis Data Analytics
Amazon Kinesis Data Streams ingests streaming clickstream data with low latency, and Amazon Kinesis Data Analytics performs real-time transformations using SQL or Apache Flink. The processed data can then be stored in Amazon S3 via a Kinesis Data Firehose delivery stream, meeting the requirement for low-latency ingestion and real-time transformation.
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 S3 with S3 Object Lambda
Why it's wrong here
S3 Object Lambda transforms data on retrieval, not for real-time ingestion.
- ✓
Amazon Kinesis Data Streams with Amazon Kinesis Data Analytics
Why this is correct
Kinesis Data Streams provides low-latency ingestion and Kinesis Data Analytics enables real-time transformations.
- ✗
Amazon Kinesis Data Firehose with AWS Lambda for transformation
Why it's wrong here
Kinesis Data Firehose has higher latency and is not ideal for real-time transformations.
- ✗
AWS Glue jobs triggered by Amazon S3 events
Why it's wrong here
AWS Glue is a batch ETL service, not real-time.
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 |
Go deeper
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JA
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.