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DVA-C02 · Question #450

A developer is creating a video search application for a global company. The video files have an average size of 2.5 TB. The video storage system must provide instant access to the video files for the

The correct answer is D. Upload the video files to Amazon S3. Use the S3 Glacier Instant Retrieval storage class for the. S3 lifecycle policies with Glacier Instant Retrieval for active data and a transition to deeper archive tiers after 90 days balances instant access with cost optimization.

Submitted by zhang_li· Mar 5, 2026Refactoring

Question

A developer is creating a video search application for a global company. The video files have an average size of 2.5 TB. The video storage system must provide instant access to the video files for the first 90 days. After the first 90 days, the video files can take more than 10 minutes to load. Which solution will meet these requirements MOST cost-effectively?

Options

  • AUpload the video files to the Amazon Elastic File System (Amazon EFS) Standard storage class
  • BUpload the video files to Amazon S3. Use the S3 Glacier Deep Archive storage class for the first
  • CUse Amazon Elastic Block Store (Amazon EBS) to store the video files for the first 90 days. After
  • DUpload the video files to Amazon S3. Use the S3 Glacier Instant Retrieval storage class for the

How the community answered

(50 responses)
  • A
    28% (14)
  • B
    6% (3)
  • C
    10% (5)
  • D
    56% (28)

Why each option

S3 lifecycle policies with Glacier Instant Retrieval for active data and a transition to deeper archive tiers after 90 days balances instant access with cost optimization.

AUpload the video files to the Amazon Elastic File System (Amazon EFS) Standard storage class

EFS Standard is a network file system designed for compute workloads; it lacks the lifecycle tiering needed to cost-effectively archive 2.5 TB video files after 90 days.

BUpload the video files to Amazon S3. Use the S3 Glacier Deep Archive storage class for the first

S3 Glacier Deep Archive is the cheapest tier but has retrieval times of 12+ hours, making it unsuitable for the first 90 days when instant access is required.

CUse Amazon Elastic Block Store (Amazon EBS) to store the video files for the first 90 days. After

EBS volumes are attached block storage for EC2 instances; they are expensive, not serverless-friendly, and have no built-in archival lifecycle management.

DUpload the video files to Amazon S3. Use the S3 Glacier Instant Retrieval storage class for theCorrect

Uploading to S3 and using S3 Glacier Instant Retrieval for the first 90 days provides millisecond access during the active period. After 90 days, a lifecycle rule can transition objects to S3 Glacier Flexible Retrieval or Deep Archive, which allows retrieval times exceeding 10 minutes and dramatically reduces storage costs for infrequently accessed large files.

Concept tested: S3 storage class lifecycle policies for cost-optimized tiered access

Source: https://docs.aws.amazon.com/AmazonS3/latest/userguide/storage-class-intro.html

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