PAS-C01 Technology Practice Question
An SAP system uses Amazon EFS for shared file storage. The SAP application writes many small files concurrently, causing high metadata operations. Which EFS performance mode should be selected to optimize for this workload?
⚠ Common exam trap
Test-takers frequently confuse EFS performance modes with throughput settings or S3 storage classes, leading candidates to select 'Throughput Optimized' (which does not exist for EFS) or 'Provisioned Throughput' (which controls throughput, not metadata 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
✓
Max I/O
Max I/O mode is designed for workloads with high concurrency and metadata-intensive operations, such as many small files being written simultaneously. It scales to higher levels of aggregate throughput and IOPS than General Purpose mode, making it the correct choice for this SAP workload.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
General Purpose
Why it's wrong here
General Purpose mode is optimized for low latency, not high metadata operations.
- ✗
Throughput Optimized
Why it's wrong here
This is not a valid EFS performance mode.
- ✓
Max I/O
Why this is correct
Max I/O mode is designed for high throughput and parallel metadata operations.
- ✗
Provisioned Throughput
Why it's wrong here
Provisioned Throughput is a throughput setting, not a performance mode.
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