- A
Enable encryption at rest by specifying a KMS key when creating the DB instance.
Encryption at rest is enabled by specifying a KMS key when creating the DB instance. This meets the encryption at rest requirement.
- B
Use Oracle Transparent Data Encryption (TDE) to encrypt the data at rest.
Why wrong: Oracle Transparent Data Encryption (TDE) is an additional feature but not required because RDS already provides encryption at rest via KMS. Using TDE would be redundant and incur extra cost.
- C
Enable encryption for CloudWatch Logs.
Why wrong: Encrypting CloudWatch Logs only protects log data, not the database data itself. It does not meet the requirement to encrypt database data at rest or in transit.
- D
Configure Oracle Native Network Encryption in the sqlnet.ora file.
Why wrong: Oracle Native Network Encryption can provide encryption in transit, but it is not the recommended method. SSL/TLS with RDS force_ssl is the preferred and more secure approach.
- E
Enable SSL/TLS encryption by setting the rds.force_ssl parameter and using the RDS SSL certificate.
Setting rds.force_ssl and using the RDS SSL certificate enforces SSL/TLS encryption for data in transit. This meets the encryption in transit requirement.
How to Enable Encryption at Rest and In Transit for Amazon RDS for Oracle
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. A key principle to apply: 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 is using Amazon RDS for Oracle and needs to comply with regulatory requirements that mandate encryption of all data at rest and in transit. Which TWO actions should be taken to meet these requirements?
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
Enable encryption at rest by specifying a KMS key when creating the DB instance.
Options A and E are correct. Option A enables encryption at rest by specifying a KMS key when creating the DB instance. Option E enables encryption in transit by setting the rds.force_ssl parameter and using the RDS SSL certificate. Option B is incorrect because Oracle TDE is not required when RDS encryption at rest is used; RDS native encryption with KMS is sufficient. Option C is incorrect because CloudWatch Logs encryption does not encrypt the database data. Option D is incorrect because Oracle Native Network Encryption is less secure than SSL/TLS and is not the recommended method for encryption in transit.
Key principle: 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.
- ✓
Enable encryption at rest by specifying a KMS key when creating the DB instance.
- ✗
Use Oracle Transparent Data Encryption (TDE) to encrypt the data at rest.
Why it's wrong here
Oracle Transparent Data Encryption (TDE) is an additional feature but not required because RDS already provides encryption at rest via KMS. Using TDE would be redundant and incur extra cost.
- ✗
Enable encryption for CloudWatch Logs.
Why it's wrong here
Encrypting CloudWatch Logs only protects log data, not the database data itself. It does not meet the requirement to encrypt database data at rest or in transit.
- ✗
Configure Oracle Native Network Encryption in the sqlnet.ora file.
Why it's wrong here
Oracle Native Network Encryption can provide encryption in transit, but it is not the recommended method. SSL/TLS with RDS force_ssl is the preferred and more secure approach.
- ✓
Enable SSL/TLS encryption by setting the rds.force_ssl parameter and using the RDS SSL certificate.
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
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
- Encryption at rest
- Encryption in transit
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
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 encryption at rest, then practise related DBS-C01 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Database Security — This question tests Database Security — Encryption at rest.
What is the correct answer to this question?
The correct answer is: Enable encryption at rest by specifying a KMS key when creating the DB instance. — Options A and E are correct. Option A enables encryption at rest by specifying a KMS key when creating the DB instance. Option E enables encryption in transit by setting the rds.force_ssl parameter and using the RDS SSL certificate. Option B is incorrect because Oracle TDE is not required when RDS encryption at rest is used; RDS native encryption with KMS is sufficient. Option C is incorrect because CloudWatch Logs encryption does not encrypt the database data. Option D is incorrect because Oracle Native Network Encryption is less secure than SSL/TLS and is not the recommended method for encryption in transit.
What should I do if I get this DBS-C01 question wrong?
Review encryption at rest, then practise related DBS-C01 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Encryption at rest
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Last reviewed: Jun 20, 2026
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