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Zorluk: OrtaAWS Storage Services

A media production company is designing a collaborative editing workflow on AWS. The design requires a shared file system that can be accessed concurrently by multiple Amazon EC2 instances distributed across different Availability Zones. Additionally, the company must store historical video archives for long-term preservation at the lowest possible storage cost, where a retrieval time of a few hours is acceptable. Which two AWS storage services should the company choose to satisfy these requirements? (Select TWO.)

  1. Amazon Elastic File System (Amazon EFS)Cevap
  2. Amazon S3 Glacier Flexible RetrievalCevap
  3. C
    Amazon Elastic Block Store (Amazon EBS)
  4. D
    Amazon EC2 Instance Store
  5. E
    Amazon S3 Standard

Cevap

Amazon Elastic File System (Amazon EFS) and Amazon S3 Glacier Flexible Retrieval
The correct services are Amazon Elastic File System (Amazon EFS) and Amazon S3 Glacier Flexible Retrieval. EFS meets the requirement for a POSIX-compliant shared file system accessible concurrently by EC2 instances across multiple Availability Zones. S3 Glacier Flexible Retrieval meets the requirement for low-cost archival storage where a retrieval window of a few hours is acceptable.

Adım Adım Çözüm

1
Analyze the requirement for concurrent shared access across multiple EC2 instances in different Availability Zones.
Identify Amazon Elastic File System (Amazon EFS) as the managed file storage service that support POSIX file system interface and concurrent access across multiple AZs.
Block storage options like EBS cannot natively provide concurrent shared file access across instances in different Availability Zones.
2
Analyze the requirement for long-term preservation of historical video archives at the lowest possible cost with a retrieval time of a few hours.
Identify Amazon S3 Glacier Flexible Retrieval as the optimal low-cost archival storage class that supports retrieval within 3-5 hours (or minutes using expedited retrieval).
Standard object storage is too expensive for archival storage, and temporary instance store does not persist data.

Anahtar Kavram

AWS Storage Service Selection based on access patterns, protocol, and cost requirements
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