DEA-C01 Data Security and Governance Practice Question
A company uses AWS Glue to process data from Amazon S3. The data contains personally identifiable information (PII). The data engineer needs to automatically detect and mask PII fields before the data is loaded into Amazon Redshift. Which combination of AWS services should be used?
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 Macie and AWS Glue
Amazon Macie discovers sensitive data, and then AWS Glue can apply transformations to mask the PII before loading into Redshift. CloudWatch Logs is for monitoring, not detection. IAM Access Analyzer is for analyzing resource policies. S3 Object Lambda can redact data during retrieval but not during Glue ETL.
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 Macie and AWS Glue
Why this is correct
Macie detects PII, Glue can mask it in the ETL job before writing to Redshift.
- ✗
Amazon CloudWatch Logs and AWS Lambda
Why it's wrong here
CloudWatch Logs is for log monitoring, not PII detection. Lambda could mask but detection is missing.
- ✗
Amazon S3 Object Lambda and AWS Glue
Why it's wrong here
S3 Object Lambda modifies data on retrieval, but Glue reads from S3 directly; not the typical pattern for ETL masking.
- ✗
AWS IAM Access Analyzer and AWS Glue
Why it's wrong here
IAM Access Analyzer analyzes resource policies, not data content.
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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Same concept, more angles
1 more way this is tested on DEA-C01
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is using AWS Glue to process data stored in Amazon S3. The data includes personally identifiable information (PII) that must be masked before being written to a separate output bucket. Which AWS service or feature can be used to automatically detect and mask sensitive data in the Glue ETL job?
hard- A.Configure CloudWatch Logs to filter and mask PII.
- ✓ B.Use Amazon Macie to identify sensitive data and apply masking logic in the Glue job.
- C.Use an IAM policy to restrict access to the PII columns.
- D.Enable S3 Object Lock on the output bucket.
Why B: Amazon Macie can be integrated with AWS Glue to automatically detect sensitive data like PII and apply masking logic within a Glue ETL job. Option A is incorrect because CloudWatch Logs are for monitoring and logging, not for data masking. Option C is incorrect because IAM policies control access permissions but do not mask data. Option D is incorrect because S3 Object Lock prevents object deletion or modification, not masking.
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.