- A
Amazon EBS volumes snapshotted and shared across instances.
Why wrong: EBS volumes are single-instance attachments.
- B
Instance store volumes on each EC2 instance.
Why wrong: Not persistent or shared.
- C
Amazon S3 with Transfer Acceleration.
Why wrong: Object storage, not a file system.
- D
Amazon EFS file system.
Provides shared, low-latency file system across AZs.
Question 1,214 of 1,733
PAS-C01 Technology Practice Question
This PAS-C01 practice question tests your understanding of technology. 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.
A company is migrating an SAP ERP system to AWS. The system requires low-latency access to a shared file system for SAP transport directories. The file system must be accessible from multiple EC2 instances in different Availability Zones. Which storage solution meets these requirements?
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
✓
Amazon EFS file system.
Amazon EFS provides a fully managed, NFS-based shared file system that can be mounted concurrently by multiple EC2 instances across different Availability Zones, offering the low-latency access required for SAP transport directories. It automatically scales storage capacity and throughput, ensuring consistent performance for SAP workloads without manual provisioning.
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.
- ✗
Amazon EBS volumes snapshotted and shared across instances.
Why it's wrong here
EBS volumes are single-instance attachments.
- ✗
Instance store volumes on each EC2 instance.
Why it's wrong here
Not persistent or shared.
- ✗
Amazon S3 with Transfer Acceleration.
Why it's wrong here
Object storage, not a file system.
- ✓
Amazon EFS file system.
Why this is correct
Provides shared, low-latency file system across AZs.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse EBS snapshots or S3 with a shared file system, overlooking that EFS is the only option that provides a POSIX-compliant, multi-AZ shared file system with low-latency access required for SAP transport directories.
Detailed technical explanation
How to think about this question
EFS uses the NFSv4.1 protocol, which supports file locking and consistent read-after-write semantics across multiple clients, essential for SAP transport directories where concurrent access and data integrity are critical. Under the hood, EFS distributes data across multiple AZs within a region via a regional file system, providing automatic replication and high availability without manual configuration. In real-world SAP on AWS deployments, EFS is often used for /usr/sap/trans and other shared directories, with throughput modes like Bursting or Provisioned to match workload demands.
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 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.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Technology — This question tests Technology — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon EFS file system. — Amazon EFS provides a fully managed, NFS-based shared file system that can be mounted concurrently by multiple EC2 instances across different Availability Zones, offering the low-latency access required for SAP transport directories. It automatically scales storage capacity and throughput, ensuring consistent performance for SAP workloads without manual provisioning.
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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