DEA-C01 Data Security and Governance Practice Question
A data engineer is designing a data pipeline that processes PII data using AWS Glue and stores results in S3. Which TWO actions should be taken to protect the data? (Choose 2)
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
✓
Store database credentials in AWS Secrets Manager and reference them in Glue connections.
Options B and D are correct. Option B: Storing database credentials in AWS Secrets Manager and referencing them in AWS Glue connections ensures that sensitive credentials are not hard-coded or exposed in plaintext, following security best practices for PII data. Option D: Configuring AWS Glue to use a KMS key for encrypting data written to S3 ensures that data at rest in S3 is encrypted with customer-managed keys, providing additional control over encryption. Option A is incorrect because S3 default encryption with SSE-S3 uses Amazon-managed keys and does not provide the same level of control as KMS; more importantly, the question asks for actions to protect PII, and using SSE-S3 alone is not sufficient for compliance with many regulations that require encryption with customer-managed keys. Option C is incorrect because enabling S3 object deletion protection with a retention policy is about preventing accidental deletion, not directly about protecting data from unauthorized access or encryption. Option E is incorrect because HTTPS encrypts data in transit, but the question also requires encryption at rest; HTTPS alone does not protect data at rest in S3.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use S3 default encryption with SSE-S3 for the output bucket.
Why it's wrong here
SSE-S3 does not use KMS, but the question is about protecting PII; SSE-S3 is acceptable but not the best with KMS. However, this is a distractor.
- ✓
Store database credentials in AWS Secrets Manager and reference them in Glue connections.
Why this is correct
Secrets Manager secures credentials.
- ✗
Enable S3 object deletion protection by setting a retention policy.
Why it's wrong here
Retention policy is for compliance, not encryption.
- ✓
Configure AWS Glue to use a KMS key for encrypting data written to S3.
Why this is correct
Glue can use KMS for encryption at rest.
- ✗
Use HTTPS for all data transfer between Glue and S3.
Why it's wrong here
HTTPS is already used, but doesn't address at-rest encryption.
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.