The answer is to change the EFS performance mode from General Purpose to Max I/O. This is the most effective way to improve EFS throughput for SAP shared file system because Max I/O mode is specifically designed to handle high levels of aggregate throughput and parallel operations, which directly addresses the bottleneck during peak loads without requiring any application changes. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this question tests your understanding of EFS performance modes versus throughput settings; a common trap is confusing Provisioned Throughput with performance mode, but Provisioned Throughput can be applied to either mode and does not inherently increase parallelism. Remember that Max I/O trades lower latency for higher throughput, making it ideal for bursty, parallel workloads like SAP shared file systems. Memory tip: Think "Max I/O = Maximum Parallelism" for peak loads.
PAS-C01 Operations and Maintenance Practice Question
This PAS-C01 practice question tests your understanding of operations and maintenance. 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 system uses a shared file system mounted via EFS from multiple EC2 instances. The operations team notices that the file system is not performing well during peak loads. What is the most effective way to improve throughput without changing the application?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Change the EFS performance mode from General Purpose to Max I/O
Option B is correct because EFS performance mode can be set to 'max I/O' to increase throughput for parallel workloads. Option A is wrong because Provisioned Throughput is independent of General Purpose vs Max I/O. Option C is wrong because moving to FSx for Lustre is a different architecture. Option D is wrong because EBS is block storage and not suitable for shared access across multiple instances.
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 Provisioned Throughput on the EFS file system
Why it's wrong here
Provisioned Throughput helps but does not address the parallel workload pattern.
✗
Replace EFS with an EBS Multi-Attach volume
Why it's wrong here
EBS Multi-Attach has limitations and is not suitable for many concurrent connections.
✗
Migrate the file system to Amazon FSx for Lustre
Why it's wrong here
FSx for Lustre is a different file system requiring application changes.
✓
Change the EFS performance mode from General Purpose to Max I/O
Why this is correct
Max I/O mode is optimized for high throughput and parallel access.
Related concept
Read the scenario before looking for a memorised answer.
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 PAS-C01 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.
Operations and Maintenance — This question tests Operations and Maintenance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Change the EFS performance mode from General Purpose to Max I/O — Option B is correct because EFS performance mode can be set to 'max I/O' to increase throughput for parallel workloads. Option A is wrong because Provisioned Throughput is independent of General Purpose vs Max I/O. Option C is wrong because moving to FSx for Lustre is a different architecture. Option D is wrong because EBS is block storage and not suitable for shared access across multiple instances.
What should I do if I get this PAS-C01 question wrong?
Identify which PAS-C01 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 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.
Question Discussion
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