- A
Amazon Route 53
Why wrong: Route 53 is a DNS service.
- B
Amazon CloudFront
Why wrong: CloudFront is a CDN, not a data store.
- C
Amazon API Gateway
Why wrong: API Gateway is for creating APIs, not a data source.
- D
Amazon S3
S3 is a common source for Glue jobs.
- E
Amazon RDS
Glue can connect to RDS via JDBC.
Question 273 of 1,786
DEA-C01 Data Ingestion and Transformation Practice Question
This DEA-C01 practice question tests your understanding of data ingestion and transformation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO AWS services can be used as sources for AWS Glue ETL jobs? (Choose two.)
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 S3
Amazon S3 is a fully managed object storage service that serves as a common source for AWS Glue ETL jobs. Glue can read data from S3 using its built-in crawlers and connectors, supporting formats like Parquet, JSON, CSV, and Avro. The Glue Data Catalog can reference S3 locations, and ETL scripts can directly read from S3 buckets via the s3:// protocol.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 Route 53
Why it's wrong here
Route 53 is a DNS service.
- ✗
Amazon CloudFront
Why it's wrong here
CloudFront is a CDN, not a data store.
- ✗
Amazon API Gateway
Why it's wrong here
API Gateway is for creating APIs, not a data source.
- ✓
Amazon S3
Why this is correct
S3 is a common source for Glue jobs.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Amazon RDS
Why this is correct
Glue can connect to RDS via JDBC.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The DEA-C01 exam often tests the misconception that any AWS service that stores or serves data (like Route 53 for DNS records or CloudFront for cached content) can be a Glue source, but Glue only supports sources that provide a direct data access interface (e.g., object storage, databases, or streaming services like Kinesis).
Detailed technical explanation
How to think about this question
Under the hood, AWS Glue ETL jobs use Apache Spark's DataFrame API to read data from sources like S3 (via the Hadoop filesystem abstraction) and Amazon RDS (via JDBC connections). For RDS, Glue automatically manages connection pooling and can push down predicates to reduce data scanned. A real-world scenario is using Glue to incrementally load transactional data from an RDS MySQL instance into an S3-based data lake for analytics, leveraging change data capture (CDC) with AWS DMS.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Data Ingestion and Transformation — study guide chapter
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon S3 — Amazon S3 is a fully managed object storage service that serves as a common source for AWS Glue ETL jobs. Glue can read data from S3 using its built-in crawlers and connectors, supporting formats like Parquet, JSON, CSV, and Avro. The Glue Data Catalog can reference S3 locations, and ETL scripts can directly read from S3 buckets via the s3:// protocol.
What should I do if I get this DEA-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
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.
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