The answer is that three steps are required to enable automatic annual rotation for customer-managed KMS keys used by RDS: enabling rotation via the KMS console or API, ensuring the key is symmetric, and configuring the RDS instance to use that key for encryption. This works because AWS KMS automatic rotation only applies to symmetric customer-managed keys, and the RDS instance must be explicitly associated with the key to benefit from the rotated material. On the AWS Certified Data Engineer Associate DEA-C01 exam, this question tests your understanding of KMS key management versus RDS encryption configuration, with a common trap being that rotation can be enabled for existing keys—not just new ones—and that CloudHSM is irrelevant here. Remember the mnemonic “Symmetric, Enable, Attach” to recall that the key must be symmetric, rotation must be enabled, and the RDS instance must be attached to the key.
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 is using AWS KMS with customer-managed keys to encrypt data in Amazon RDS. The security team wants to ensure that the key can be rotated automatically every year. Which THREE steps are required to achieve automatic key rotation?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable automatic key rotation in the KMS key configuration.
Options B, C, and D are correct. To enable automatic rotation for a customer-managed KMS key, you must enable rotation via the KMS console or API (B), ensure the key is a symmetric key (C) as asymmetric keys do not support automatic rotation, and configure the RDS instance to use the key (D) for encryption. Option A is incorrect because rotation can be enabled for existing keys. Option E is incorrect because CloudHSM is not involved.
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.
✗
Migrate the key to AWS CloudHSM.
Why it's wrong here
CloudHSM is not required for automatic rotation.
✓
Enable automatic key rotation in the KMS key configuration.
Why this is correct
This is required to rotate the key automatically.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use a symmetric KMS key.
Why this is correct
Only symmetric keys support automatic rotation.
Related concept
Read the scenario before looking for a memorised answer.
✓
Configure the RDS instance to use the KMS key for encryption.
Why this is correct
RDS must be configured to use the KMS key.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a new KMS key and configure RDS to use it.
Why it's wrong here
Automatic rotation can be enabled on existing customer-managed keys.
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 DEA-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.
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: Enable automatic key rotation in the KMS key configuration. — Options B, C, and D are correct. To enable automatic rotation for a customer-managed KMS key, you must enable rotation via the KMS console or API (B), ensure the key is a symmetric key (C) as asymmetric keys do not support automatic rotation, and configure the RDS instance to use the key (D) for encryption. Option A is incorrect because rotation can be enabled for existing keys. Option E is incorrect because CloudHSM is not involved.
What should I do if I get this DEA-C01 question wrong?
Identify which DEA-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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Refer to the exhibit. A data engineer runs the commands shown. What can be determined about the key with ID 1234abcd-12ab-34cd-56ef-1234567890ab?
hard
A.It is pending deletion.
B.It was created in us-west-2.
C.It is a customer managed key.
✓ D.It is an AWS managed key.
Why D: Option A is correct because the KeyManager is "AWS", indicating it is an AWS managed key. Option B is wrong because the key is enabled. Option C is wrong because the key was created in us-east-1 (implied by ARN). Option D is wrong because the key state is Enabled, not PendingDeletion.
Variation 2. Refer to the exhibit. The exhibit shows output from AWS CLI commands. Which key can be used to enable automatic annual rotation?
medium
A.The second key (5678efgh-...)
B.Both keys
C.Neither key
✓ D.The first key (1234abcd-...)
Why D: Option A is correct because only customer managed keys support automatic rotation. Option B is wrong because AWS managed keys are rotated automatically but cannot be configured by the user. Option C is wrong because both keys can be rotated, but only customer managed keys have user-controlled rotation. Option D is wrong because the second key is AWS managed.
Variation 3. A company uses AWS KMS to encrypt sensitive data stored in S3. To meet compliance requirements, they need to ensure that the encryption keys are automatically rotated every year. Which type of KMS key should they use?
hard
A.Customer managed key with manual rotation
B.AWS managed key
C.Custom key store (CloudHSM) key
✓ D.Customer managed key with automatic rotation enabled
Why D: Option A is correct because AWS managed keys with automatic rotation are rotated annually. Option B is wrong because customer managed keys can have automatic rotation but it is not mandatory. Option C is wrong because custom key stores do not support automatic rotation. Option D is wrong because AWS managed keys are not created by the customer.
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This DEA-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 DEA-C01 exam.
Question Discussion
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