DEA-C01 Data Ingestion and Transformation Practice Question
A company uses AWS Glue to transform data in Amazon S3. The transformation logic is complex and involves multiple steps. The data engineer wants to implement a workflow that handles dependencies and retries on failure. Which AWS service should be used to orchestrate the Glue jobs?
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
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AWS Step Functions
AWS Step Functions is the best choice for orchestrating Glue jobs with dependencies and retries.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
AWS Step Functions
Why this is correct
Correct. AWS Step Functions can orchestrate multiple Glue jobs with error handling and retries.
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AWS Lambda
Why it's wrong here
Incorrect. AWS Lambda is not designed for orchestration of long-running jobs.
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Amazon Managed Workflows for Apache Airflow (MWAA)
Why it's wrong here
Amazon Managed Workflows for Apache Airflow (MWAA) is incorrect because, while capable of orchestrating Glue jobs, it introduces an external orchestration layer requiring Python DAG development and management of an Airflow environment. This adds operational overhead compared to a serverless, AWS-native workflow service. MWAA is tempting as a powerful general-purpose workflow engine, ideal for orchestrating complex, multi-service, or hybrid cloud workflows, or when an organisation standardises on Airflow for its extensive customisation and operator ecosystem.
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Amazon CloudWatch Events
Why it's wrong here
Incorrect. Amazon CloudWatch Events schedules jobs but does not handle dependencies.
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.