The correct choice is to replicate data to a different geographic region, as this provides the highest durability by ensuring a complete, independent copy of the database survives even a total data center or regional failure. This approach leverages geo-replication, which uses asynchronous or synchronous replication to maintain data consistency across physically separated sites, achieving a Recovery Point Objective and Recovery Time Objective that no single-site solution can match. On the CompTIA Cloud+ CV0-004 exam, this concept tests your understanding of data durability best practices in cloud architectures, often appearing in scenario-based questions where a trap is to confuse high availability within one region with true durability across regions. Remember the memory tip: “One region is for uptime, two regions are for lifetime”—geo-replication gives you that 12 nines of durability by spreading risk across the globe.
CV0-004 Operations and Support Practice Question
This CV0-004 practice question tests your understanding of operations and support. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 storage administrator needs to ensure data durability for a critical database. Which approach provides the highest durability?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Replicate data to a different geographic region.
Replicating data to a different geographic region provides the highest durability by ensuring that even if an entire data center or region experiences a catastrophic failure (e.g., natural disaster, power outage), a complete copy of the database remains available in another region. This approach leverages asynchronous or synchronous replication to maintain data consistency across geographically separated sites, achieving a Recovery Point Objective (RPO) and Recovery Time Objective (RTO) that single-site solutions cannot match. In cloud environments, this is often implemented using services like AWS Cross-Region Replication or Azure Geo-Redundant Storage, which guarantee 99.9999999999% (12 nines) durability.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Store data on a single SSD volume.
Why it's wrong here
A single volume is a single point of failure and offers no redundancy.
✗
Enable encryption at rest.
Why it's wrong here
Encryption protects data confidentiality, not durability.
✗
Use RAID 0 across multiple volumes.
Why it's wrong here
RAID 0 stripes data without redundancy; failure of any volume causes data loss.
✓
Replicate data to a different geographic region.
Why this is correct
Geo-replication provides the highest durability by storing copies in separate regions, protecting against region-wide disasters.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse data protection mechanisms (like encryption or RAID) with durability, assuming that redundancy within a single site (RAID 0) or security features (encryption) can prevent data loss from a regional disaster, when only geographic replication addresses that risk.
Detailed technical explanation
How to think about this question
Geo-replication typically uses asynchronous replication to minimize latency, meaning there is a small window of potential data loss (RPO of seconds to minutes) depending on the replication lag. In contrast, synchronous replication across regions would introduce significant write latency due to the speed of light delay, so it is rarely used for cross-region setups. Real-world scenarios, such as a regional AWS outage in us-east-1, demonstrate that only geo-replicated data survives, while single-region RAID or encryption provides no protection against such events.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Operations and Support — This question tests Operations and Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Replicate data to a different geographic region. — Replicating data to a different geographic region provides the highest durability by ensuring that even if an entire data center or region experiences a catastrophic failure (e.g., natural disaster, power outage), a complete copy of the database remains available in another region. This approach leverages asynchronous or synchronous replication to maintain data consistency across geographically separated sites, achieving a Recovery Point Objective (RPO) and Recovery Time Objective (RTO) that single-site solutions cannot match. In cloud environments, this is often implemented using services like AWS Cross-Region Replication or Azure Geo-Redundant Storage, which guarantee 99.9999999999% (12 nines) durability.
What should I do if I get this CV0-004 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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