- A
Set the RDS parameter enforce_ssl to 1.
This is correct. To enforce encrypted connections for RDS MySQL, you must modify the DB parameter group to require SSL/TLS by setting parameters such as 'require_secure_transport' to 1. While the exact parameter name may vary, the intent is to enforce encryption in transit.
- B
Create the RDS DB instance in a private subnet.
Why wrong: This is incorrect. Placing the RDS instance in a private subnet controls network access but does not encrypt database connections.
- C
Enable encryption for the RDS DB instance at creation time.
Why wrong: This is incorrect. Enabling encryption at rest encrypts data on the storage layer, not the connections. The question specifically requires encrypted connections (in transit), which is not achieved by this setting.
- D
Configure the VPC security group to only allow traffic from certain IPs.
Why wrong: This is incorrect. VPC security groups control inbound/outbound traffic based on IP addresses, but they do not provide encryption for connections.
DEA-C01 Amazon RDS encryption at rest 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. A key principle to apply: amazon RDS encryption at rest. 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 uses Amazon RDS for MySQL to store financial data. A compliance requirement mandates that all database connections must be encrypted. Which configuration step is necessary?
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
Set the RDS parameter enforce_ssl to 1.
Option A is correct because to enforce encrypted connections in transit for RDS MySQL, you need to configure the DB parameter group to require SSL/TLS. Setting the parameter 'require_secure_transport' to 1 (or an equivalent parameter like 'enforce_ssl' in some exam contexts) forces all connections to use encryption. Option C is incorrect because enabling encryption at rest (at creation time) encrypts stored data, not connections in transit, which does not satisfy the compliance requirement for encrypted connections.
Key principle: Amazon RDS encryption at rest
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Set the RDS parameter enforce_ssl to 1.
Why this is correct
This is correct. To enforce encrypted connections for RDS MySQL, you must modify the DB parameter group to require SSL/TLS by setting parameters such as 'require_secure_transport' to 1. While the exact parameter name may vary, the intent is to enforce encryption in transit.
Related concept
Amazon RDS encryption at rest
- ✗
Create the RDS DB instance in a private subnet.
Why it's wrong here
This is incorrect. Placing the RDS instance in a private subnet controls network access but does not encrypt database connections.
- ✗
Enable encryption for the RDS DB instance at creation time.
Why it's wrong here
This is incorrect. Enabling encryption at rest encrypts data on the storage layer, not the connections. The question specifically requires encrypted connections (in transit), which is not achieved by this setting.
- ✗
Configure the VPC security group to only allow traffic from certain IPs.
Why it's wrong here
This is incorrect. VPC security groups control inbound/outbound traffic based on IP addresses, but they do not provide encryption for connections.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Encryption at rest (enabled at creation) does not encrypt database connections in transit. A common trap is confusing encryption at rest with encryption in transit. For encrypted connections, you must configure the DB parameter group (e.g., require_secure_transport=1 for MySQL).
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Amazon RDS encryption at rest
- SSL/TLS enforcement for RDS MySQL
TExam Day Tips
- 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
Amazon RDS encryption at rest
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Review amazon RDS encryption at rest, then practise related DEA-C01 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Security and Governance — This question tests Data Security and Governance — Amazon RDS encryption at rest.
What is the correct answer to this question?
The correct answer is: Set the RDS parameter enforce_ssl to 1. — Option A is correct because to enforce encrypted connections in transit for RDS MySQL, you need to configure the DB parameter group to require SSL/TLS. Setting the parameter 'require_secure_transport' to 1 (or an equivalent parameter like 'enforce_ssl' in some exam contexts) forces all connections to use encryption. Option C is incorrect because enabling encryption at rest (at creation time) encrypts stored data, not connections in transit, which does not satisfy the compliance requirement for encrypted connections.
What should I do if I get this DEA-C01 question wrong?
Review amazon RDS encryption at rest, then practise related DEA-C01 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Amazon RDS encryption at rest
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Last reviewed: Jun 20, 2026
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