DBS-C01 Database Security Practice Question
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 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
✓
Configure the RDS instance to require SSL/TLS connections.
Options A, C, and E are correct. Option A: Configuring the RDS instance to require SSL/TLS encrypts data in transit, meeting the encryption-in-transit requirement. Option C: Enabling encryption at rest for the RDS instance at launch time allows use of AWS KMS for encryption, satisfying the at-rest encryption requirement. Option E: Creating a customer managed key (CMK) in AWS KMS enables the company to manage the encryption key, meeting the requirement for a key managed by the company. Option B is incorrect because setting rds.force_ssl to 1 in the DB parameter group is a step within configuring SSL/TLS, but the primary action is option A; moreover, the correct method to enforce SSL for Oracle RDS involves using the option group with the SSL option, not just the parameter group. Option D is incorrect because Transparent Data Encryption (TDE) using CloudHSM is not required; the at-rest encryption requirement is already fulfilled by enabling RDS encryption with a CMK (options C and E), and TDE with CloudHSM adds unnecessary complexity and potential licensing issues.
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.
Why this is correct
SSL/TLS encrypts data in transit.
- ✗
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.
- ✗
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.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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