- A
Enable IAM database authentication.
Why wrong: IAM database authentication controls user access, not network encryption; it does not encrypt the connection itself.
- B
Modify the sqlnet.ora file on the RDS instance to require encryption.
Why wrong: RDS does not allow direct OS file access.
- C
Create a custom DB parameter group with the encryption parameters set to REQUIRED.
Correct. A custom DB parameter group allows setting the SQLNET.ENCRYPTION_SERVER and SQLNET.ENCRYPTION_TYPES parameters to enforce NNE for all connections.
- D
Enable encryption at rest using Oracle TDE.
Why wrong: TDE encrypts data at rest, not in transit.
Question 1,095 of 1,730
DBS-C01 Oracle Native Network Encryption (NNE) Practice Question
This DBS-C01 practice question tests your understanding of database security. 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: oracle Native Network Encryption (NNE). 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 security team requires that all connections to the database use Oracle Native Network Encryption (NNE). How should this be configured?
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
✓
Create a custom DB parameter group with the encryption parameters set to REQUIRED.
RDS for Oracle supports Oracle Native Network Encryption (NNE) through custom DB parameter groups. You must set the SQLNET.ENCRYPTION_SERVER parameter to REQUIRED and optionally specify encryption types. Option A (IAM database authentication) does not encrypt the network connection. Option B is incorrect because RDS does not allow direct editing of sqlnet.ora files; parameter groups are the correct method. Option D (encryption at rest) protects stored data, not data in transit.
Key principle: Oracle Native Network Encryption (NNE)
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 IAM database authentication.
Why it's wrong here
IAM database authentication controls user access, not network encryption; it does not encrypt the connection itself.
- ✗
Modify the sqlnet.ora file on the RDS instance to require encryption.
Why it's wrong here
RDS does not allow direct OS file access.
- ✓
Create a custom DB parameter group with the encryption parameters set to REQUIRED.
Why this is correct
Correct. A custom DB parameter group allows setting the SQLNET.ENCRYPTION_SERVER and SQLNET.ENCRYPTION_TYPES parameters to enforce NNE for all connections.
Related concept
Oracle Native Network Encryption (NNE)
- ✗
Enable encryption at rest using Oracle TDE.
Why it's wrong here
TDE encrypts data at rest, not in transit.
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
- Oracle Native Network Encryption (NNE)
- DB Parameter Group
- RDS for Oracle Encryption
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
Oracle Native Network Encryption (NNE)
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Review oracle Native Network Encryption (NNE), 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 — Oracle Native Network Encryption (NNE).
What is the correct answer to this question?
The correct answer is: Create a custom DB parameter group with the encryption parameters set to REQUIRED. — RDS for Oracle supports Oracle Native Network Encryption (NNE) through custom DB parameter groups. You must set the SQLNET.ENCRYPTION_SERVER parameter to REQUIRED and optionally specify encryption types. Option A (IAM database authentication) does not encrypt the network connection. Option B is incorrect because RDS does not allow direct editing of sqlnet.ora files; parameter groups are the correct method. Option D (encryption at rest) protects stored data, not data in transit.
What should I do if I get this DBS-C01 question wrong?
Review oracle Native Network Encryption (NNE), then practise related DBS-C01 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Oracle Native Network Encryption (NNE)
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Last reviewed: Jun 20, 2026
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