DEA-C01 Data Security and Governance Practice Question
A company uses AWS Glue to process sensitive data. The security team requires that all data in transit between Glue and Amazon S3 be encrypted using TLS 1.2 or higher. Which configuration ensures this requirement is met?
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
✓
Add a bucket policy that denies access unless aws:SecureTransport is true
S3 bucket policies can enforce aws:SecureTransport to require HTTPS. Glue by default uses HTTPS when accessing S3, but to enforce it, the bucket policy must deny requests without SecureTransport. Option A is wrong because VPC endpoints enforce private connectivity but not necessarily TLS version. Option B is wrong because S3 Block Public Access does not affect encryption in transit. Option D is wrong because KMS is for at-rest encryption. Option C is correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure a VPC endpoint for S3 and enable private DNS
Why it's wrong here
This ensures traffic stays within AWS network but does not enforce TLS 1.2.
- ✗
Enable S3 Block Public Access at the bucket level
Why it's wrong here
This controls public access, not encryption in transit.
- ✓
Add a bucket policy that denies access unless aws:SecureTransport is true
Why this is correct
Enforces HTTPS, which typically uses TLS 1.2+.
- ✗
Use SSE-KMS encryption on the S3 bucket
Why it's wrong here
This encrypts data at rest, not in 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
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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 uses AWS Glue to process data. The security team requires that all data in transit between AWS Glue and Amazon S3 be encrypted using TLS. Which configuration should be used?
easy- ✓ A.Enable S3 server-side encryption and use HTTPS endpoints
- B.Configure a bucket policy to require aws:SecureTransport
- C.Enable default encryption on the S3 bucket using SSE-KMS
- D.Use an S3 VPC endpoint
Why A: AWS Glue uses TLS for data in transit by default. Option B is wrong because S3 default encryption is for at-rest. Option C is wrong because VPC endpoints use AWS PrivateLink but don't enforce encryption. Option D is wrong because it's not required for TLS.
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.