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Data Protection →hardMultiple ChoiceObjective-mapped

SCS-C02 Data Protection Practice Question

This SCS-C02 practice question tests your understanding of data protection. 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 runs a critical application on Amazon EC2 instances that store sensitive data on EBS volumes. The security team has enabled EBS encryption by default for the region. However, after a recent security audit, it was discovered that some EBS volumes are not encrypted. The team finds that these volumes were created before the default encryption setting was enabled. The company's security policy mandates that all EBS volumes must be encrypted at rest, and the process must minimize downtime. The application cannot tolerate more than 5 minutes of downtime. The EC2 instances are running production workloads. What should the security engineer do to remediate the unencrypted volumes?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

A
Enable encryption on the existing EBS volumes directly from the console
Why wrong: Wrong: You cannot enable encryption on an existing EBS volume.
B
Create a new encrypted EBS volume, detach the unencrypted volume, and attach the new encrypted volume to the instance. Then copy data from a backup.
Correct: This minimizes downtime and achieves encryption.
C
Stop the instance, create an encrypted snapshot of the unencrypted volume, restore a new encrypted volume from the snapshot, and start the instance
Why wrong: Wrong: Stopping the instance causes more downtime than detaching/attaching.
D
Launch a new EC2 instance with an encrypted EBS volume, migrate the application to the new instance, and terminate the old instance
Why wrong: Wrong: This causes more downtime and complexity.

Full breakdown with real-world context →

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

✓

Create a new encrypted EBS volume, detach the unencrypted volume, and attach the new encrypted volume to the instance. Then copy data from a backup.

Option B is correct because it allows creating a new encrypted volume and attaching it to the instance without significant downtime (a few minutes for detachment/attachment). Option A is wrong because enabling encryption on an existing volume is not supported. Option C is wrong because stopping the instance and creating an encrypted snapshot/volume would cause more downtime (stop/start). Option D is wrong because migrating to a new instance would require additional setup and likely more downtime.

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 encryption on the existing EBS volumes directly from the console
Why it's wrong here
Wrong: You cannot enable encryption on an existing EBS volume.
✓
Create a new encrypted EBS volume, detach the unencrypted volume, and attach the new encrypted volume to the instance. Then copy data from a backup.
Why this is correct
Correct: This minimizes downtime and achieves encryption.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Stop the instance, create an encrypted snapshot of the unencrypted volume, restore a new encrypted volume from the snapshot, and start the instance
Why it's wrong here
Wrong: Stopping the instance causes more downtime than detaching/attaching.
✗
Launch a new EC2 instance with an encrypted EBS volume, migrate the application to the new instance, and terminate the old instance
Why it's wrong here
Wrong: This causes more downtime and complexity.

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 SCS-C02 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.

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FAQ

Questions learners often ask

What does this SCS-C02 question test?

Data Protection — This question tests Data Protection — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Create a new encrypted EBS volume, detach the unencrypted volume, and attach the new encrypted volume to the instance. Then copy data from a backup. — Option B is correct because it allows creating a new encrypted volume and attaching it to the instance without significant downtime (a few minutes for detachment/attachment). Option A is wrong because enabling encryption on an existing volume is not supported. Option C is wrong because stopping the instance and creating an encrypted snapshot/volume would cause more downtime (stop/start). Option D is wrong because migrating to a new instance would require additional setup and likely more downtime.

What should I do if I get this SCS-C02 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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