- A
Use AWS Database Migration Service (DMS) for continuous replication to a separate RDS instance in us-west-2.
Why wrong: DMS is more complex and typically used for migrations, not standard DR for RDS.
- B
Create a cross-region read replica in us-west-2 and promote it during failover.
Cross-region read replicas provide low RPO and can be promoted quickly, meeting both RTO and RPO.
- C
Export data to S3 using AWS Backup and restore in us-west-2.
Why wrong: Backup and restore may take longer than 4 hours and RPO depends on backup frequency.
- D
Take daily automated snapshots of the RDS instance and copy them to us-west-2.
Why wrong: Daily snapshots provide an RPO of up to 24 hours, exceeding the 1-hour requirement.
Question 472 of 997
CV0-004 Operations and Support Practice Question
This CV0-004 practice question tests your understanding of operations and support. 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 uses AWS and wants to implement a disaster recovery plan with an RTO of 4 hours and RPO of 1 hour. They have a primary site in us-east-1 and a DR site in us-west-2. The application data is stored in Amazon RDS for MySQL. Which strategy meets both RTO and RPO with minimal data loss?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"primary"Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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 cross-region read replica in us-west-2 and promote it during failover.
Cross-region read replicas for Amazon RDS provide asynchronous replication with a typical RPO of less than 5 minutes, easily meeting the 1-hour requirement. In a disaster, you can promote the replica to a primary instance within minutes, meeting the 4-hour RTO.
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.
- ✗
Use AWS Database Migration Service (DMS) for continuous replication to a separate RDS instance in us-west-2.
Why it's wrong here
DMS is more complex and typically used for migrations, not standard DR for RDS.
- ✓
Create a cross-region read replica in us-west-2 and promote it during failover.
Why this is correct
Cross-region read replicas provide low RPO and can be promoted quickly, meeting both RTO and RPO.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Export data to S3 using AWS Backup and restore in us-west-2.
Why it's wrong here
Backup and restore may take longer than 4 hours and RPO depends on backup frequency.
- ✗
Take daily automated snapshots of the RDS instance and copy them to us-west-2.
Why it's wrong here
Daily snapshots provide an RPO of up to 24 hours, exceeding the 1-hour requirement.
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
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 practitioner preparing for the CV0-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which CV0-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Operations and Support — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this CV0-004 question test?
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: Create a cross-region read replica in us-west-2 and promote it during failover. — Cross-region read replicas for Amazon RDS provide asynchronous replication with a typical RPO of less than 5 minutes, easily meeting the 1-hour requirement. In a disaster, you can promote the replica to a primary instance within minutes, meeting the 4-hour RTO.
What should I do if I get this CV0-004 question wrong?
Identify which CV0-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This CV0-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CV0-004 exam.
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