DBS-C01 Database Security Practice Question
A company is running an Amazon RDS for SQL Server DB instance with Multi-AZ deployment. The security team wants to ensure that all data at rest is encrypted using a customer-managed key stored in AWS KMS. Which steps must be taken to achieve this? (Choose THREE.)
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
✓
Copy the snapshot and specify encryption with a KMS key.
To encrypt an existing unencrypted RDS instance, you must create a manual snapshot (D), copy the snapshot with encryption using a KMS key (C), and then restore the DB instance from the encrypted snapshot (E). Option A is incorrect because you cannot enable encryption on an existing DB instance directly. Option B is incorrect because Multi-AZ deployment does not automatically encrypt data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Modify the DB instance and enable encryption.
Why it's wrong here
RDS does not allow enabling encryption on an existing instance.
- ✗
Enable Multi-AZ deployment to encrypt data at rest.
Why it's wrong here
Multi-AZ does not encrypt data.
- ✓
Copy the snapshot and specify encryption with a KMS key.
Why this is correct
Copying a snapshot allows you to enable encryption.
- ✓
Create a manual snapshot of the existing DB instance.
Why this is correct
A snapshot is needed to copy with encryption.
- ✓
Restore the DB instance from the encrypted snapshot.
Why this is correct
Restoring from the encrypted snapshot creates an encrypted instance.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-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 DBS-C01 exam.