DEA-C01 Data Security and Governance Practice Question
A company uses Amazon EMR to process sensitive data. The data engineer needs to ensure that data in transit between EMR and S3 is encrypted. Which THREE configurations achieve this? (Choose THREE.)
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
✓
Configure EMRFS to use server-side encryption with S3 (SSE-S3) and require HTTPS
To ensure encryption in transit between Amazon EMR and S3, you can use server-side encryption with customer-provided keys (SSE-C) with HTTPS (Option D), configure EMRFS to use server-side encryption with S3 (SSE-S3) and require HTTPS (Option B), or use VPC endpoints for S3 with a policy that enforces HTTPS (Option E). Option A (S3 Block Public Access) controls public access, not transit encryption. Option C (SSE-KMS) encrypts data at rest, not in transit. Thus, correct answers are B, D, E.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable S3 Block Public Access on the bucket
Why it's wrong here
Controls public access, not transit encryption.
- ✓
Configure EMRFS to use server-side encryption with S3 (SSE-S3) and require HTTPS
Why this is correct
EMRFS can enforce HTTPS for data transfer.
- ✗
Enable SSE-KMS on the S3 bucket
Why it's wrong here
Encrypts data at rest, not in transit.
- ✓
Use SSE-C with HTTPS for S3 communication
Why this is correct
SSE-C requires HTTPS, ensuring encryption in transit.
- ✓
Configure EMR to use VPC endpoints for S3 with a policy that enforces HTTPS
Why this is correct
VPC endpoints can enforce HTTPS for transit.
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
Related to this question
About these practice questions
Courseiva writes every DEA-C01 question from scratch — 1,711 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.