Questions 16 to 18

Explanations for questions 16 to 18

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Question 16

A company has 500 TB of data in an on-premises file share that needs to be moved to Amazon S3 Glacier. The migration must not saturate the company’s low-bandwidth Internet connection must be completed within a few weeks.

Which is the most cost-effective solution?

  1. Create an AWS Direct Connect connection, and migrate the data straight into Amazon Glacier.
  2. Order 7 AWS Snowball appliances, and select an S3 Glacier vault as the destination. Create a bucket policy to enforce a VPC endpoint.
  3. Use AWS Global Accelerator to accelerate, upload, and optimize usage of the available bandwidth.
  4. Order 7 AWS Snowball appliances, and select an Amazon S3 bucket as the destination. Create a lifecycle policy to transition the S3 objects to Amazon S3 Glacier.

Correct Answer: 4

Explanation: As the company’s internet link is low-bandwidth, uploading directly to Amazon S3 (ready for the transition to Glacier) would saturate the link. The best alternative is to use AWS Snowball appliances. The Snowball Edge appliance can hold up to 80 TB of data, so 7 devices would be required to migrate 500 TB of data.

Snowball moves data into AWS using a hardware device, and the data is then copied into an Amazon S3 bucket of your choice. From there, lifecycle policies can transition the S3 objects to Amazon S3 Glacier.

INCORRECT:Create an AWS Direct Connect connection, and migrate the data straight into Amazon Glacier.” is incorrect as this is not the most cost-effective option and takes time to set up.

INCORRECT:Order 7 AWS Snowball appliances, and select an S3 Glacier vault as the destination. Create a bucket policy to enforce a VPC endpoint.” is incorrect as you cannot set a Glacier vault as the destination; it must be an S3 bucket. You also can’t enforce a VPC endpoint using a bucket policy.

INCORRECT:Use AWS Global Accelerator to accelerate, upload, and optimize usage of the available bandwidth.” is incorrect as this service is not used for accelerating or optimizing the upload of data from on-premises networks.

CORRECT:Order 7 AWS Snowball appliances, and select an Amazon S3 bucket as the destination. Create a lifecycle policy to transition the S3 objects to Amazon S3 Glacier.” is the correct answer.

References:

https://docs.aws.amazon.com/snowball/latest/developer-guide/specifications.html

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