The correct answer is to enable encryption at rest using a customer-managed key because this directly addresses the core security requirement for a migrated database containing sensitive financial data. Encryption at rest ensures that data stored on disk within the cloud-managed database service is unreadable if the physical storage is compromised, which is a fundamental defense for data confidentiality. On the CompTIA Cloud+ CV0-004 exam, this scenario tests your understanding that security configurations must be prioritized based on risk, and that encryption at rest is a non-negotiable control for regulated data. A common trap is confusing availability features like replication or patching with the primary security goal of protecting stored data; remember that while patching is important, encryption at rest is the most critical post-migration configuration for sensitive data. Memory tip: think "Rest = Disk, Key = Control" — encryption at rest protects data on the disk, and a customer-managed key gives you control over that protection.
CV0-004 Operations and Support Practice Question
This CV0-004 practice question tests your understanding of operations and support. 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. 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 its on-premises database to a cloud-managed database service. The database contains sensitive financial data. Which of the following is the MOST important security configuration to implement after migration?
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 using a customer-managed key
Option C is correct because encryption at rest protects data in the database storage. Option A is wrong because patching is important but not the most critical for security after migration. Option B is wrong because public access should be disabled, not enabled. Option D is wrong because replication is for availability, not security.
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 encryption at rest using a customer-managed key
Why this is correct
Encryption at rest protects data from unauthorized access to storage media.
Related concept
Static NAT maps one inside address to one outside address.
✗
Configure automated patching schedule
Why it's wrong here
Patching addresses vulnerabilities but encryption is more fundamental for data protection.
✗
Enable public read access for monitoring tools
Why it's wrong here
Public access increases attack surface; monitoring should use private endpoints.
✗
Set up cross-region replication for high availability
Why it's wrong here
Replication is for availability, not data security.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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 CV0-004 NAT questions on configuration and troubleshooting.
Operations and Support — This question tests Operations and Support — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Enable encryption at rest using a customer-managed key — Option C is correct because encryption at rest protects data in the database storage. Option A is wrong because patching is important but not the most critical for security after migration. Option B is wrong because public access should be disabled, not enabled. Option D is wrong because replication is for availability, not security.
What should I do if I get this CV0-004 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 CV0-004 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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