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PAS-C01 Amazon EFS Burst Credits Practice Question

This PAS-C01 practice question tests your understanding of technology. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: amazon EFS Burst Credits. 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 runs SAP BusinessObjects on AWS using multiple EC2 instances. The system uses a shared file system (EFS) for the repository and output files. Recently, users have reported that generating large reports takes much longer than usual. The SAP administrator checks the EFS metrics in CloudWatch and sees that the BurstCreditBalance is consistently near zero. The EFS file system is in General Purpose mode with default throughput settings. The current size of the file system is 500 GB. What should the administrator do to improve performance?

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

Switch to Provisioned Throughput mode and set a higher value.

Option C is correct because with BurstCreditBalance consistently near zero, the EFS file system has exhausted its burst credits. For SAP workloads that require consistent throughput and have high I/O demands, AWS recommends using Provisioned Throughput mode to ensure predictable performance. This allows the administrator to specify a higher throughput value independent of the file system size, which resolves the performance issue for large report generation. Option B is incorrect because enabling Max I/O mode changes the performance mode, not the throughput mode. Max I/O is designed for workloads with high concurrency and does not guarantee consistent throughput; it may not provide the stable performance needed for SAP. Option A is incorrect because EFS One Zone is for cost savings in a single AZ and does not improve throughput. Option D is incorrect because while adding data increases baseline throughput slightly, it is not an efficient or practical solution and may not provide sufficient throughput.

Key principle: Amazon EFS Burst Credits

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Migrate the EFS file system to EFS One Zone for better performance.

    Why it's wrong here

    Incorrect. EFS One Zone is for cost optimization by using a single Availability Zone, but it does not improve throughput performance.

  • Enable Max I/O throughput mode on the EFS file system.

    Why it's wrong here

    Incorrect. Max I/O mode is designed for high concurrency workloads, not for providing consistent throughput when burst credits are exhausted. It does not guarantee predictable performance for SAP report generation.

  • Switch to Provisioned Throughput mode and set a higher value.

    Why this is correct

    Correct. Provisioned Throughput mode allows setting a specific throughput value, ensuring consistent performance without relying on burst credits.

    Related concept

    Amazon EFS Burst Credits

  • Increase the size of the EFS file system by adding more data to it.

    Why it's wrong here

    Incorrect. Adding data increases the baseline throughput slightly, but it is not an efficient or practical solution and may not provide sufficient improvement for the issue.

Common exam traps

Common exam trap: answer the scenario, not the keyword

A common mistake is to assume that Max I/O mode (option B) solves burst credit exhaustion because it provides higher burst throughput. However, Max I/O is a performance mode that optimizes for high concurrency, not sustained throughput. For SAP workloads, Provisioned Throughput (option C) is the recommended solution to ensure consistent performance.

Detailed technical explanation

How to think about this question

Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.

KKey Concepts to Remember

  • Amazon EFS Burst Credits
  • Provisioned Throughput
  • Max I/O Performance Mode

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

Amazon EFS Burst Credits

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.

Visual reference

Client Recursive Resolver Root DNS (13 root servers) TLD DNS (.com, .org, …) Authoritative example.com query IP addr answer

What to study next

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FAQ

Questions learners often ask

What does this PAS-C01 question test?

Technology — This question tests Technology — Amazon EFS Burst Credits.

What is the correct answer to this question?

The correct answer is: Switch to Provisioned Throughput mode and set a higher value. — Option C is correct because with BurstCreditBalance consistently near zero, the EFS file system has exhausted its burst credits. For SAP workloads that require consistent throughput and have high I/O demands, AWS recommends using Provisioned Throughput mode to ensure predictable performance. This allows the administrator to specify a higher throughput value independent of the file system size, which resolves the performance issue for large report generation. Option B is incorrect because enabling Max I/O mode changes the performance mode, not the throughput mode. Max I/O is designed for workloads with high concurrency and does not guarantee consistent throughput; it may not provide the stable performance needed for SAP. Option A is incorrect because EFS One Zone is for cost savings in a single AZ and does not improve throughput. Option D is incorrect because while adding data increases baseline throughput slightly, it is not an efficient or practical solution and may not provide sufficient throughput.

What should I do if I get this PAS-C01 question wrong?

Review amazon EFS Burst Credits, then practise related PAS-C01 questions on the same topic to reinforce the concept.

What is the key concept behind this question?

Amazon EFS Burst Credits

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This PAS-C01 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 PAS-C01 exam.