The correct answer is to ensure that the Redshift cluster has SSL enabled, which encrypts data in transit by default for COPY and UNLOAD operations to S3. This works because Redshift automatically negotiates an SSL connection when transferring data to or from S3, wrapping the data stream in Transport Layer Security to protect it from interception during transit. On the AWS Certified Database Specialty DBS-C01 exam, this concept tests your understanding of the difference between encryption in transit versus at rest—a common trap is confusing server-side encryption (SSE-S3) or VPC endpoints with transit encryption. Remember, SSL is the default mechanism for Redshift’s S3 data movement, so no extra configuration is needed beyond enabling SSL on the cluster. A quick memory tip: “COPY and UNLOAD ride the SSL road”—if data is moving between Redshift and S3, SSL is already handling the encryption in transit.
DBS-C01 Database Security Practice Question
This DBS-C01 practice question tests your understanding of database security. 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 stores sensitive data in an Amazon S3 bucket that is accessed by an Amazon Redshift cluster. The security team requires that the data in transit between Redshift and S3 be encrypted. Which configuration ensures this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Ensure that the Redshift cluster has SSL enabled, which encrypts data in transit by default for COPY/UNLOAD operations to S3.
Option B is correct. Redshift automatically uses SSL encryption for data in transit when moving data to and from S3 using COPY/UNLOAD commands. Option A is incorrect because server-side encryption (SSE-S3) encrypts data at rest, not in transit. Option C is incorrect because client-side encryption encrypts data before sending, but Redshift handles this automatically with SSL. Option D is incorrect because VPC endpoints do not encrypt data in transit; they provide private connectivity.
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.
✗
Enable server-side encryption (SSE-S3) on the S3 bucket.
Ensure that the Redshift cluster has SSL enabled, which encrypts data in transit by default for COPY/UNLOAD operations to S3.
Why this is correct
Redshift uses SSL for data transfer to S3 by default.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure a VPC endpoint for S3.
Why it's wrong here
VPC endpoints provide private connectivity but do not encrypt data in transit.
✗
Use client-side encryption on the data before uploading to S3.
Why it's wrong here
Client-side encryption encrypts before upload, but Redshift manages this internally.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 DBS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Database Security — This question tests Database Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Ensure that the Redshift cluster has SSL enabled, which encrypts data in transit by default for COPY/UNLOAD operations to S3. — Option B is correct. Redshift automatically uses SSL encryption for data in transit when moving data to and from S3 using COPY/UNLOAD commands. Option A is incorrect because server-side encryption (SSE-S3) encrypts data at rest, not in transit. Option C is incorrect because client-side encryption encrypts data before sending, but Redshift handles this automatically with SSL. Option D is incorrect because VPC endpoints do not encrypt data in transit; they provide private connectivity.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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