PAS-C01 Operations and Maintenance Practice Question
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?
⚠ Common exam trap
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.
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 EFS performance mode 'max I/O'.
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.
Answer analysis
Option-by-option breakdown
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.
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Written by Johnson Ajibi, MSc IT Security
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