- A
Increase the size of the EFS file system to increase the burst credit balance
Why wrong: Burst credit accumulation rate is based on size, but increasing size may not be cost-effective.
- B
Enable Provisioned Throughput mode on the EFS file system
Provides consistent throughput without burst credits.
- C
Mount the /sapmnt directory from an Amazon EBS gp3 volume instead
Why wrong: EBS volumes cannot be shared across multiple instances.
- D
Change the EFS performance mode to Max I/O
Why wrong: Max I/O improves IOPS but not throughput.
Question 612 of 1,733
Amazon EFS /sapmnt Latency — Provisioned Throughput Solution | AWS SAP on AWS Specialty Explained
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. 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.
An SAP administrator notices that the SAP application server is experiencing high latency when reading from the shared /sapmnt directory mounted from an Amazon EFS file system. The EFS file system is in General Purpose performance mode and uses Bursting throughput mode. The administrator checks CloudWatch metrics and sees that BurstCreditBalance is near zero. What is the most cost-effective solution to address the latency?
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
✓
Enable Provisioned Throughput mode on the EFS file system
Option B is correct because the BurstCreditBalance is near zero, indicating the file system has exhausted its burst credits under Bursting throughput mode. Enabling Provisioned Throughput mode allows you to specify a consistent throughput level independent of the file system's size, eliminating reliance on burst credits and resolving the latency for the /sapmnt directory. This is the most cost-effective solution as it avoids the need to increase storage size (Option A) or migrate to a different storage service.
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.
- ✗
Increase the size of the EFS file system to increase the burst credit balance
Why it's wrong here
Burst credit accumulation rate is based on size, but increasing size may not be cost-effective.
- ✓
Enable Provisioned Throughput mode on the EFS file system
Why this is correct
Provides consistent throughput without burst credits.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Mount the /sapmnt directory from an Amazon EBS gp3 volume instead
Why it's wrong here
EBS volumes cannot be shared across multiple instances.
- ✗
Change the EFS performance mode to Max I/O
Why it's wrong here
Max I/O improves IOPS but not throughput.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume increasing storage size (Option A) is the only way to increase throughput under Bursting mode, overlooking that Provisioned Throughput mode provides a direct, cost-effective alternative without requiring additional storage.
Detailed technical explanation
How to think about this question
EFS Bursting throughput mode uses a credit model where each file system accumulates burst credits based on its stored data size (50 GiB per hour per TiB of storage). When credits are exhausted, throughput drops to the baseline rate (100 MiB/s per TiB for General Purpose mode), causing latency. Provisioned Throughput mode decouples throughput from storage size, allowing you to specify up to 1 GiB/s per TiB of storage, and is billed per MB/s provisioned, making it cost-effective for workloads with predictable throughput needs without over-provisioning storage. In SAP environments, /sapmnt is a critical shared directory for transport files and kernel binaries, and consistent low latency is essential for application server performance.
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.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable Provisioned Throughput mode on the EFS file system — Option B is correct because the BurstCreditBalance is near zero, indicating the file system has exhausted its burst credits under Bursting throughput mode. Enabling Provisioned Throughput mode allows you to specify a consistent throughput level independent of the file system's size, eliminating reliance on burst credits and resolving the latency for the /sapmnt directory. This is the most cost-effective solution as it avoids the need to increase storage size (Option A) or migrate to a different storage service.
What should I do if I get this PAS-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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