- A
Provisioned IOPS for the primary cluster.
Why wrong: IOPS is a performance factor, not DR-specific.
- B
Network latency between source and target Regions.
Latency affects replication lag and RTO.
- C
Storage costs in the target Region.
Storage costs vary and impact DR budget.
- D
Failover priority of reader instances.
Why wrong: Failover priority is for within-region Aurora replicas.
- E
Recovery Point Objective (RPO) requirements.
RPO defines acceptable data loss, influencing replication strategy.
Question 1,025 of 1,730
DBS-C01 Management and Operations Practice Question
This DBS-C01 practice question tests your understanding of management and operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which THREE factors should be considered when planning a cross-Region disaster recovery strategy for an Amazon Aurora MySQL DB cluster? (Choose 3.)
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
✓
Network latency between source and target Regions.
Option B is correct because network latency between source and target Regions directly impacts the replication lag for Amazon Aurora Global Database. Aurora uses asynchronous replication across Regions, and higher latency increases the delay between committing a transaction on the primary cluster and it being available on the secondary cluster, which affects the achievable Recovery Point Objective (RPO).
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.
- ✗
Provisioned IOPS for the primary cluster.
Why it's wrong here
IOPS is a performance factor, not DR-specific.
- ✓
Network latency between source and target Regions.
Why this is correct
Latency affects replication lag and RTO.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Storage costs in the target Region.
Why this is correct
Storage costs vary and impact DR budget.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Failover priority of reader instances.
Why it's wrong here
Failover priority is for within-region Aurora replicas.
- ✓
Recovery Point Objective (RPO) requirements.
Why this is correct
RPO defines acceptable data loss, influencing replication strategy.
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 local failover mechanisms (reader instance priority) with cross-Region disaster recovery, or mistakenly think that provisioned IOPS or storage costs in the target Region are primary considerations when RPO and replication lag are the critical factors.
Detailed technical explanation
How to think about this question
Aurora Global Database uses a dedicated storage-based replication mechanism that asynchronously replicates data from the primary Region to up to five secondary Regions with typical lag under one second under normal conditions. However, network latency between Regions can cause replication lag to increase, and if the lag exceeds the 1% of the RPO threshold, you may need to adjust the cluster's `binlog_format` or use lower-latency inter-Region connections like AWS Direct Connect or VPC peering to meet strict RPO requirements.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Management and Operations — This question tests Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Network latency between source and target Regions. — Option B is correct because network latency between source and target Regions directly impacts the replication lag for Amazon Aurora Global Database. Aurora uses asynchronous replication across Regions, and higher latency increases the delay between committing a transaction on the primary cluster and it being available on the secondary cluster, which affects the achievable Recovery Point Objective (RPO).
What should I do if I get this DBS-C01 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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Last reviewed: Jul 4, 2026
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