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    PracticeAWS Solutions Architect Professional (SAP-C02)AWS Solutions Architect Professional SAP-C02 Practice Exam 2Question 56
    Easy1 markMultiple Choice
    Domain 2.2: Business ContinuityEFSStorageArchitecture

    AWS SAP-C02 · Question 56 · Domain 2.2: Business Continuity

    An application requires a highly available, POSIX-compliant file system that can be mounted concurrently by hundreds of EC2 instances across multiple Availability Zones. Which AWS service meets this requirement?

    Answer options:

    A.

    Amazon Elastic Block Store (EBS)

    B.

    Amazon S3

    C.

    Amazon Elastic File System (EFS)

    D.

    Amazon FSx for Windows File Server

    How to approach this question

    Match 'POSIX-compliant', 'concurrent access', and 'multi-AZ' to the storage service.

    Full Answer

    C.Amazon Elastic File System (EFS)✓ Correct
    Amazon Elastic File System (EFS)
    Amazon EFS provides a simple, scalable, fully managed elastic NFS file system for use with AWS Cloud services and on-premises resources. It is natively multi-AZ and POSIX-compliant.

    Common mistakes

    Choosing EBS, which is block storage and generally single-attach.
    Question 55All questionsQuestion 57

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