- A
Amazon Elastic Block Store (EBS)
Why wrong: Block storage, cannot be shared across multiple instances.
- B
Amazon FSx for Windows File Server
Why wrong: Uses SMB protocol, not NFS.
- C
Amazon Elastic File System (EFS)
Managed NFS file system.
- D
Amazon S3
Why wrong: Object storage, not a file system.
Question 1,557 of 1,733
PAS-C01 Migration Practice Question
This PAS-C01 practice question tests your understanding of migration. 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 organization is migrating an SAP system from on-premises to AWS. The SAP system uses a shared file system (NFS) for transport directories. The company wants a fully managed NFS solution on AWS. Which service should they use?
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 Elastic File System (EFS)
Amazon EFS is a fully managed NFS file system that supports the NFSv4.1 and NFSv4.0 protocols, making it the ideal choice for SAP transport directories that require a shared POSIX-compliant file system. It provides high availability, automatic scaling, and eliminates the need to manage underlying storage infrastructure, directly matching the requirement for a fully managed NFS solution on AWS.
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 Elastic Block Store (EBS)
Why it's wrong here
Block storage, cannot be shared across multiple instances.
- ✗
Amazon FSx for Windows File Server
Why it's wrong here
Uses SMB protocol, not NFS.
- ✓
Amazon Elastic File System (EFS)
Why this is correct
Managed NFS file system.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon S3
Why it's wrong here
Object storage, not a file system.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Amazon EBS with a shared file system because it can be formatted with a file system, but they overlook that EBS volumes cannot be attached to multiple EC2 instances simultaneously without additional clustering software, making it unsuitable for NFS-based SAP transport directories.
Detailed technical explanation
How to think about this question
SAP transport directories rely on NFS for shared access across multiple application servers, and EFS automatically scales storage capacity and throughput as files are added or accessed, without requiring provisioning. Under the hood, EFS uses a distributed data storage architecture that replicates data across multiple Availability Zones for durability, and it supports both General Purpose and Max I/O performance modes to handle varying workload patterns. In real-world SAP migrations, using EFS for the /usr/sap/trans directory ensures consistent transport management across the landscape while avoiding the operational overhead of self-managed NFS servers.
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?
Migration — This question tests Migration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon Elastic File System (EFS) — Amazon EFS is a fully managed NFS file system that supports the NFSv4.1 and NFSv4.0 protocols, making it the ideal choice for SAP transport directories that require a shared POSIX-compliant file system. It provides high availability, automatic scaling, and eliminates the need to manage underlying storage infrastructure, directly matching the requirement for a fully managed NFS solution on AWS.
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: 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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