This DBS-C01 practice question tests your understanding of database security. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 is using Amazon Redshift for data warehousing. They need to ensure that data is encrypted at rest using a customer-managed AWS KMS key. The cluster is currently unencrypted. What is the simplest way to enable encryption?
Create a new Redshift cluster with encryption enabled and migrate the data.
This is the simplest method; create a new encrypted cluster and copy the data.
B
Enable encryption directly on the existing cluster using AWS CLI.
Why wrong: Encryption cannot be enabled on an existing cluster; a new cluster must be created.
C
Create a snapshot of the existing cluster and restore it to a new encrypted cluster.
Why wrong: While possible, this is not the simplest because you need to restore to a new cluster; creating a new cluster directly and copying data may be simpler.
D
Modify the existing cluster and enable encryption using the Redshift console.
Why wrong: Redshift does not support enabling encryption on an existing cluster.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a new Redshift cluster with encryption enabled and migrate the data.
Option C is correct because you cannot enable encryption on an existing Redshift cluster. You must create a new cluster with encryption enabled, then copy data from the old cluster to the new one. Option A is wrong because modifying the cluster does not support encryption. Option B is wrong because you cannot directly encrypt an existing cluster. Option D is wrong because restoring from a snapshot to an encrypted target is possible, but you must first create an unencrypted snapshot and then restore to an encrypted cluster; however, the simplest method is to create a new encrypted cluster and copy data, as restoring a snapshot to a different cluster still requires creating a new cluster.
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.
✓
Create a new Redshift cluster with encryption enabled and migrate the data.
Why this is correct
This is the simplest method; create a new encrypted cluster and copy the data.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable encryption directly on the existing cluster using AWS CLI.
Why it's wrong here
Encryption cannot be enabled on an existing cluster; a new cluster must be created.
✗
Create a snapshot of the existing cluster and restore it to a new encrypted cluster.
Why it's wrong here
While possible, this is not the simplest because you need to restore to a new cluster; creating a new cluster directly and copying data may be simpler.
✗
Modify the existing cluster and enable encryption using the Redshift console.
Why it's wrong here
Redshift does not support enabling encryption on an existing cluster.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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: Create a new Redshift cluster with encryption enabled and migrate the data. — Option C is correct because you cannot enable encryption on an existing Redshift cluster. You must create a new cluster with encryption enabled, then copy data from the old cluster to the new one. Option A is wrong because modifying the cluster does not support encryption. Option B is wrong because you cannot directly encrypt an existing cluster. Option D is wrong because restoring from a snapshot to an encrypted target is possible, but you must first create an unencrypted snapshot and then restore to an encrypted cluster; however, the simplest method is to create a new encrypted cluster and copy data, as restoring a snapshot to a different cluster still requires creating a new cluster.
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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