SAP-C02 Design for New Solutions Practice Question
A company is deploying a containerized application on Amazon EKS. The application requires persistent storage that can be shared across multiple pods in different Availability Zones. Which TWO storage solutions meet this requirement? (Choose TWO.)
⚠ Common exam trap
A common mix-up: candidates assume EBS volumes can be shared across pods because they are persistent, but EBS is a block device with a single-attach limitation, making it unsuitable for multi-pod shared access across AZs.
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 FSx for Lustre
Amazon EFS provides a fully managed, scalable, and elastic NFS file system that can be mounted concurrently by multiple Amazon EKS pods across different Availability Zones, making it suitable for shared persistent storage. Amazon FSx for Lustre is a high-performance file system optimized for workloads like machine learning and HPC, and it supports concurrent access from multiple clients across AZs, meeting the requirement for shared storage.
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 with io2 volumes
Why it's wrong here
EBS volumes can only be attached to a single EC2 instance in one AZ; not shareable across AZs.
- ✗
Amazon S3
Why it's wrong here
S3 is object storage, not a file system; not suitable for shared file system access.
- ✗
Amazon EC2 Instance Store
Why it's wrong here
Instance Store is ephemeral and tied to a single instance; cannot be shared.
- ✓
Amazon FSx for Lustre
Why this is correct
FSx for Lustre is a high-performance file system that can be shared across multiple clients in different AZs.
- ✓
Amazon EFS
Why this is correct
EFS provides a scalable, shared file system accessible from multiple AZs.
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Same concept, more angles
2 more ways this is tested on SAP-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is designing a new container-based application using Amazon EKS. The application requires persistent storage for stateful workloads, such as databases. The storage must be highly available and durable across multiple Availability Zones. Which storage solution should be used?
medium- A.Use Amazon EBS volumes with the EBS CSI driver.
- B.Use Amazon FSx for Lustre as a shared file system.
- ✓ C.Use Amazon EFS with the EFS CSI driver.
- D.Use Amazon S3 with the S3 CSI driver.
Why C: Amazon EFS provides a fully managed, elastic NFS file system that is accessible from multiple Amazon EKS worker nodes across different Availability Zones simultaneously. The EFS CSI driver enables Kubernetes pods to mount EFS as a persistent volume, delivering the required high availability and durability for stateful workloads like databases without single-AZ dependency.
Variation 2. A company is designing a new application that will run on Amazon EKS. The application requires persistent storage that can be accessed by multiple pods simultaneously. The storage must be highly available and durable. Which storage solution should be used?
hard- A.Amazon EFS with One Zone storage classes
- B.Amazon EBS with gp3 volume type
- ✓ C.Amazon S3 with Mountpoint for S3
- D.Amazon FSx for Lustre
Why C: Amazon S3 with Mountpoint for S3 is the correct choice because it provides a fully managed, highly available, and durable object storage that can be accessed by multiple Amazon EKS pods simultaneously via a file system interface. S3 is designed for 99.999999999% durability and 99.99% availability, and Mountpoint allows concurrent read/write access from multiple pods, meeting the RWX access mode requirement. Amazon EFS One Zone (Option A) is not highly available as it resides in a single Availability Zone, Amazon EBS gp3 (Option B) supports only RWO, and Amazon FSx for Lustre (Option D) is optimized for high-performance computing and is not a general-purpose shared storage solution.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 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 SAP-C02 exam.