This DBS-C01 practice question tests your understanding of database security. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 migrating an on-premises Oracle database to Amazon RDS for Oracle. The database contains sensitive personally identifiable information (PII). The security team requires that the data be encrypted in transit between the application and the RDS instance, and also encrypted at rest using a key managed by the company. Which THREE actions should the company take? (Choose THREE.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the RDS instance to require SSL/TLS connections.
Options A, C, and D are correct. Option A: enabling SSL/TLS encrypts data in transit. Option C: KMS customer managed key allows the company to manage the key for at-rest encryption. Option D: RDS encryption must be enabled at launch. Option B is wrong because RDS does not support TDE with CloudHSM for Oracle. Option E is wrong because forcing SSL is a parameter, not an option group level action.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Configure the RDS instance to require SSL/TLS connections.
Modify the DB parameter group to set the 'rds.force_ssl' parameter to 1.
Why it's wrong here
This is a parameter, not a parameter group modification.
✓
Enable encryption at rest for the RDS instance at launch time.
Why this is correct
RDS encryption must be enabled at creation.
Related concept
Standard ACLs match source addresses.
✗
Enable Transparent Data Encryption (TDE) using CloudHSM.
Why it's wrong here
RDS for Oracle does not support TDE with CloudHSM.
✓
Create a customer managed key (CMK) in AWS KMS.
Why this is correct
CMK allows customer-managed key for at-rest encryption.
Related concept
Standard ACLs match source addresses.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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. ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement. 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.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DBS-C01 ACL questions on filtering logic and placement.
Database Security — This question tests Database Security — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Configure the RDS instance to require SSL/TLS connections. — Options A, C, and D are correct. Option A: enabling SSL/TLS encrypts data in transit. Option C: KMS customer managed key allows the company to manage the key for at-rest encryption. Option D: RDS encryption must be enabled at launch. Option B is wrong because RDS does not support TDE with CloudHSM for Oracle. Option E is wrong because forcing SSL is a parameter, not an option group level action.
What should I do if I get this DBS-C01 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DBS-C01 ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Question Discussion
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