Quick Answer
The answer is to enable EFS Max I/O performance mode for SAP. This is correct because Max I/O mode distributes file data across multiple AWS servers within a region, allowing the file system to handle a high volume of concurrent read operations without the bottleneck of a single server, which directly addresses the latency your SAP application experiences when reading shared files. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of EFS performance modes and their fit for SAP workloads—a common trap is confusing Max I/O with General Purpose mode, which prioritizes low latency for fewer concurrent operations but cannot scale horizontally for high-throughput SAP demands. Remember the memory tip: “Max I/O for max throughput; General Purpose for general consistency.”
This PAS-C01 practice question tests your understanding of operations and maintenance. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Your SAP system on AWS uses a shared file system with Amazon EFS. The operations team notices that the SAP application is experiencing latency when reading files from EFS. Which action can improve read performance?
Use Amazon FSx for Windows File Server instead.
Why wrong: FSx is different.
Move the file system to Amazon EBS with provisioned IOPS.
Why wrong: EBS is block storage, not file system.
Use Amazon S3 with Transfer Acceleration.
Why wrong: S3 is object storage.
Enable EFS performance mode 'max I/O'.
Improves throughput.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Enable EFS performance mode 'max I/O'.
Option D is correct because enabling EFS 'max I/O' performance mode increases the file system's ability to handle a high number of concurrent read operations by distributing data across multiple servers within the AWS region. This mode is specifically designed for workloads like SAP that require high throughput and low-latency access to shared files, as it scales I/O operations horizontally without the bottleneck of a single file server.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Use Amazon FSx for Windows File Server instead.
Why it's wrong here
FSx is different.
Move the file system to Amazon EBS with provisioned IOPS.
Why it's wrong here
EBS is block storage, not file system.
Use Amazon S3 with Transfer Acceleration.
Why it's wrong here
S3 is object storage.
Enable EFS performance mode 'max I/O'.
Why this is correct
Improves throughput.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse EFS performance modes with throughput settings, assuming 'max I/O' only helps with write-heavy workloads, when in fact it is critical for read-heavy, high-concurrency scenarios like SAP shared file systems.
Detailed technical explanation
Under the hood, EFS 'max I/O' mode uses a distributed data plane that spreads file metadata and data across multiple availability zones and servers, allowing it to achieve up to 1,000,000 IOPS for read-heavy workloads. In contrast, the default 'general purpose' mode uses a single file server for metadata operations, which can become a bottleneck under high concurrency. For SAP systems, which often use multiple application servers to read shared configuration and log files simultaneously, 'max I/O' mode reduces contention by parallelizing access across the distributed backend.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Operations and Maintenance — This question tests Operations and Maintenance — Read the scenario before looking for a memorised answer..
The correct answer is: Enable EFS performance mode 'max I/O'. — Option D is correct because enabling EFS 'max I/O' performance mode increases the file system's ability to handle a high number of concurrent read operations by distributing data across multiple servers within the AWS region. This mode is specifically designed for workloads like SAP that require high throughput and low-latency access to shared files, as it scales I/O operations horizontally without the bottleneck of a single file server.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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.
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