The correct answer is AWS Database Migration Service (DMS) with ongoing replication and AWS Backup. AWS DMS with ongoing replication continuously captures and applies change data from the on-premises database to an AWS-hosted target, achieving a Recovery Point Objective (RPO) of 15 minutes by minimizing data loss. AWS Backup then automates scheduled, cross-Region snapshots of that target database, enabling a fast restore that meets the 2-hour Recovery Time Objective (RTO). On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this pairing tests your understanding of combining real-time replication for low RPO with automated backup orchestration for rapid recovery—a common trap is choosing S3 or Storage Gateway, which lack native database replication capabilities. Remember the mnemonic “DMS streams, Backup restores” to recall that DMS handles continuous sync while Backup handles the recovery automation.
DOP-C02 Resilient Cloud Solutions Practice Question
This DOP-C02 practice question tests your understanding of resilient cloud solutions. 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 implementing a disaster recovery plan for its on-premises database using AWS. The plan must have a Recovery Time Objective (RTO) of 2 hours and a Recovery Point Objective (RPO) of 15 minutes. Which TWO AWS services should the company use? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS Backup with cross-Region backup copy
Option B is correct because AWS Database Migration Service (DMS) can replicate changes continuously, meeting RPO of 15 minutes. Option D is correct because AWS Backup can automate backups and support cross-Region recovery, meeting RTO of 2 hours. Option A is wrong because S3 alone does not provide database replication. Option C is wrong because Storage Gateway is for file/volume storage, not database replication. Option E is wrong because Snowball is for large data transfer, not real-time replication.
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.
✗
AWS Snowball Edge
Why it's wrong here
Snowball is for offline data transfer, not real-time replication.
✗
Amazon S3 with versioning
Why it's wrong here
S3 is not a database replication service.
✓
AWS Backup with cross-Region backup copy
Why this is correct
AWS Backup can automate and restore backups quickly, meeting RTO.
Related concept
Read the scenario before looking for a memorised answer.
✓
AWS Database Migration Service (DMS) with ongoing replication
Why this is correct
DMS can replicate changes with low latency, meeting RPO.
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS Storage Gateway with cached volumes
Why it's wrong here
Storage Gateway is not designed for database replication.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which DOP-C02 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.
Resilient Cloud Solutions — This question tests Resilient Cloud Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Backup with cross-Region backup copy — Option B is correct because AWS Database Migration Service (DMS) can replicate changes continuously, meeting RPO of 15 minutes. Option D is correct because AWS Backup can automate backups and support cross-Region recovery, meeting RTO of 2 hours. Option A is wrong because S3 alone does not provide database replication. Option C is wrong because Storage Gateway is for file/volume storage, not database replication. Option E is wrong because Snowball is for large data transfer, not real-time replication.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-C02 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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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This DOP-C02 practice question is part of Courseiva's free Amazon Web Services 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 DOP-C02 exam.
Question Discussion
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