This DBS-C01 practice question tests your understanding of database security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 personally identifiable information (PII). The security team requires that all PII columns be transparently encrypted and that the encryption keys be stored in AWS CloudHSM. Which solution meets these requirements?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Oracle Transparent Data Encryption (TDE) with AWS CloudHSM as the key store.
Option D is correct because Oracle TDE with CloudHSM integration allows transparent encryption and stores keys in CloudHSM. Option A is wrong because RDS Encryption uses KMS, not CloudHSM. Option B is wrong because Oracle Data Pump does not encrypt columns. Option C is wrong because RDS does not support custom encryption at the column level natively.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 Amazon RDS encryption at rest using a KMS key and rely on that encryption.
Why it's wrong here
RDS encryption encrypts the entire instance, not individual columns, and uses KMS, not CloudHSM.
✗
Modify the Oracle database to use AWS KMS for column-level encryption.
Why it's wrong here
RDS for Oracle does not support KMS for column-level encryption; you need native Oracle TDE.
✗
Use Oracle Data Pump to export data with encryption and store the encryption key in AWS Secrets Manager.
Why it's wrong here
Data Pump is for data migration, not real-time transparent encryption.
✓
Use Oracle Transparent Data Encryption (TDE) with AWS CloudHSM as the key store.
Why this is correct
Oracle TDE provides transparent column encryption, and CloudHSM can serve as the hardware security module for key storage.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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 the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DBS-C01 NAT questions on configuration and troubleshooting.
Database Security — This question tests Database Security — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use Oracle Transparent Data Encryption (TDE) with AWS CloudHSM as the key store. — Option D is correct because Oracle TDE with CloudHSM integration allows transparent encryption and stores keys in CloudHSM. Option A is wrong because RDS Encryption uses KMS, not CloudHSM. Option B is wrong because Oracle Data Pump does not encrypt columns. Option C is wrong because RDS does not support custom encryption at the column level natively.
What should I do if I get this DBS-C01 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DBS-C01 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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