Question 1,405 of 1,546
Reliability and Business ContinuityhardMultiple ChoiceObjective-mapped

Improve RPO by Increasing EBS Snapshot Frequency

This SOA-C02 practice question tests your understanding of reliability and business continuity. 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.

A SysOps administrator is designing a disaster recovery plan for a critical application that runs on EC2 instances with data stored on EBS volumes. The application requires an RPO of 15 minutes and an RTO of 2 hours. The current solution uses EBS snapshots taken every 6 hours. The administrator needs to improve the backup strategy to meet the RPO. What is the most cost-effective way to achieve this?

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

Increase the snapshot frequency to every 15 minutes.

Option C is correct because increasing the snapshot frequency to every 15 minutes directly reduces the recovery point objective (RPO) from 6 hours to 15 minutes, meeting the requirement without incurring additional infrastructure costs. EBS snapshots are incremental and cost-effective, as only changed blocks are stored after the initial snapshot, making frequent snapshots a practical approach for achieving a low 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.

  • Enable EBS Recycle Bin with a retention rule of 15 minutes.

    Why it's wrong here

    Recycle Bin protects against deletion, but does not create snapshots.

  • Change the EBS volume type to io2 Block Express.

    Why it's wrong here

    Volume type does not affect snapshot frequency.

  • Increase the snapshot frequency to every 15 minutes.

    Why this is correct

    More frequent snapshots reduce the potential data loss window to 15 minutes, meeting the 15-minute RPO.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Use EBS Multi-Attach to attach volumes to multiple instances for redundancy.

    Why it's wrong here

    Multi-Attach provides concurrent access, not backup.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates may confuse the EBS Recycle Bin (which protects against accidental deletion) with a backup frequency solution, or think that changing volume types or using Multi-Attach can improve RPO, when neither addresses the need for more frequent recovery points.

Detailed technical explanation

How to think about this question

EBS snapshots are stored in Amazon S3 and are incremental—only blocks that have changed since the last snapshot are saved, which keeps storage costs low even with frequent snapshots. The RPO of 15 minutes is achievable by scheduling snapshots via Amazon Data Lifecycle Manager (DLM) or AWS Backup, which can automate snapshot creation at intervals as low as 1 hour (or 15 minutes using custom scripts with the AWS CLI/SDK). In a real-world scenario, frequent snapshots can be combined with cross-region snapshot copies to also meet a low RTO for regional failures.

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 SOA-C02 question test?

Reliability and Business Continuity — This question tests Reliability and Business Continuity — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Increase the snapshot frequency to every 15 minutes. — Option C is correct because increasing the snapshot frequency to every 15 minutes directly reduces the recovery point objective (RPO) from 6 hours to 15 minutes, meeting the requirement without incurring additional infrastructure costs. EBS snapshots are incremental and cost-effective, as only changed blocks are stored after the initial snapshot, making frequent snapshots a practical approach for achieving a low RPO.

What should I do if I get this SOA-C02 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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This SOA-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 SOA-C02 exam.