DEA-C01 Data Security and Governance Practice Question
This DEA-C01 practice question tests your understanding of data security and governance. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A company uses AWS Glue to process sensitive data stored in Amazon S3. The security team requires that all data in transit between AWS Glue and S3 be encrypted. Which configuration should be used to meet this requirement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use an S3 bucket policy that denies requests not using HTTPS.
Option A is correct because requiring HTTPS for all requests to the S3 bucket ensures that data in transit between AWS Glue and S3 is encrypted using TLS. By using an S3 bucket policy with a condition that denies requests where `aws:SecureTransport` is false, the company enforces encryption for all connections, including those from AWS Glue. This meets the security requirement without needing to modify Glue or S3 configurations beyond the bucket policy.
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.
✓
Use an S3 bucket policy that denies requests not using HTTPS.
Why this is correct
This enforces encryption in transit for all requests.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use an AWS KMS key to encrypt the data before uploading to S3.
Why it's wrong here
Client-side encryption does not guarantee encryption in transit.
✗
Configure AWS Glue to use SSL by setting the 'ssl' parameter to 'true'.
Why it's wrong here
SSL is already enabled by default; a bucket policy is needed to enforce it.
✗
Enable default encryption on the S3 bucket using SSE-S3.
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse encryption at rest (SSE-S3, SSE-KMS, client-side encryption) with encryption in transit (TLS/HTTPS), and may incorrectly assume that enabling default encryption or using KMS keys secures the data during transfer.
Detailed technical explanation
How to think about this question
The `aws:SecureTransport` condition in an S3 bucket policy evaluates the `True` or `False` value of the HTTPS/TLS connection. When set to deny requests with `SecureTransport=false`, any HTTP request is rejected, forcing clients (including AWS Glue) to use HTTPS. Under the hood, AWS Glue uses the AWS SDK, which defaults to HTTPS for S3 API calls, but a bucket policy provides a fail-safe enforcement mechanism that prevents accidental misconfiguration or non-compliant access from other sources.
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.
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.
Data Security and Governance — This question tests Data Security and Governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use an S3 bucket policy that denies requests not using HTTPS. — Option A is correct because requiring HTTPS for all requests to the S3 bucket ensures that data in transit between AWS Glue and S3 is encrypted using TLS. By using an S3 bucket policy with a condition that denies requests where `aws:SecureTransport` is false, the company enforces encryption for all connections, including those from AWS Glue. This meets the security requirement without needing to modify Glue or S3 configurations beyond the bucket policy.
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.
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Question Discussion
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