PAS-C01 Technology Practice Question
A company is planning to run SAP BusinessObjects (BOBJ) on AWS. The application servers require consistent low-latency access to a shared file system for storing reports and configuration files. Which AWS storage solution is BEST suited for this requirement?
⚠ Common exam trap
Many exam-takers confuse Amazon EBS Multi-Attach with a true shared file system, not realizing that EBS Multi-Attach is limited to a single Availability Zone and does not support concurrent writes from multiple instances, whereas EFS is designed for exactly that use case with full NFS semantics.
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 (Amazon EFS).
Amazon EFS provides a fully managed, scalable, and shared file system that can be accessed concurrently by multiple EC2 instances via the NFSv4.1 protocol. For SAP BusinessObjects application servers requiring consistent low-latency access to shared reports and configuration files, EFS delivers the necessary POSIX permissions, strong consistency, and automatic scaling without provisioning overhead, making it the ideal choice.
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 (Amazon EBS) with a multi-attach enabled volume.
Why it's wrong here
EBS multi-attach is limited to a few instances and not ideal for shared file systems.
- ✓
Amazon Elastic File System (Amazon EFS).
Why this is correct
EFS provides a scalable, shared NFS file system for Linux instances.
- ✗
Amazon Simple Storage Service (Amazon S3).
Why it's wrong here
S3 is object storage, not a file system, and does not provide POSIX permissions.
- ✗
Amazon FSx for Windows File Server.
Why it's wrong here
Bobj typically runs on Linux, so FSx for Windows is not the best fit.
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 |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.