Amazon Exam SAA-C03 Topic 3 Question 36 Discussion

Actual exam question for Amazon's SAA-C03 exam

Question #: 36
Topic #: 3

A company uses Amazon EC2 instances and Amazon Elastic Block Store (Amazon EBS) to run its self-managed database The company has 350 TB of data spread across all EBS volumes. The company takes daily EBS snapshots and keeps the snapshots for 1 month. The dally change rate is 5% of the EBS volumes.

Because of new regulations, the company needs to keep the monthly snapshots for 7 years. The company needs to change its backup strategy to comply with the new regulations and to ensure that data is available with minimal administrative effort.

Which solution will meet these requirements MOST cost-effectively?

AKeep the daily snapshot in the EBS snapshot standard tier for 1 month Copy the monthly snapshot to Amazon S3 Glacier Deep Archive with a 7-year retention
period.

BContinue with the current EBS snapshot policy. Add a new policy to move the monthly snapshot to Amazon EBS Snapshots Archive with a 7-year retention period.

CKeep the daily snapshot in the EBS snapshot standard tier for 1 month Keep the monthly snapshot in the standard tier for 7 years Use incremental snapshots.

DKeep the daily snapshot in the EBS snapshot standard tier. Use EBS direct APIs to take snapshots of all the EBS volumes every month. Store the snapshots in an Amazon S3 bucket in the Infrequent Access tier for 7 years.

Show Suggested Answer

Suggested Answer: B

This solution meets the requirements most cost-effectively because it enables the company to migrate its on-premises NFS data store to AWS without changing the existing applications or workflows. AWS Storage Gateway is a hybrid cloud storage service that provides seamless and secure integration between on-premises and AWS storage. Amazon S3 File Gateway is a type of AWS Storage Gateway that provides a file interface to Amazon S3, with local caching for low-latency access. By setting up an Amazon S3 File Gateway, the company can store and retrieve files as objects in Amazon S3 using standard file protocols such as NFS. The company can also use an Amazon S3 Lifecycle policy to automatically transition the data to the appropriate storage class based on the frequency of access and the cost of storage. For example, the company can use S3 Standard for frequently accessed data, S3 Standard-Infrequent Access (S3 Standard-IA) or S3 One Zone-Infrequent Access (S3 One Zone-IA) for less frequently accessed data, and S3 Glacier or S3 Glacier Deep Archive for long-term archival data.

Option A is not a valid solution because AWS Storage Gateway Volume Gateway is a type of AWS Storage Gateway that provides a block interface to Amazon S3, with local caching for low-latency access. Volume Gateway is not suitable for migrating an NFS data store, as it requires attaching the volumes to EC2 instances or on-premises servers using the iSCSI protocol. Option C is not a valid solution because Amazon Elastic File System (Amazon EFS) is a fully managed elastic NFS file system that is designed for workloads that require high availability, scalability, and performance. Amazon EFS Standard-Infrequent Access (Standard-IA) is a storage class within Amazon EFS that is optimized for infrequently accessed files, with a lower price per GB and a higher price per access. Using Amazon EFS Standard-IA for migrating an NFS data store would not be cost-effective, as it would incur higher access charges and require additional configuration to enable lifecycle management. Option D is not a valid solution because Amazon EFS One Zone-Infrequent Access (One Zone-IA) is a storage class within Amazon EFS that is optimized for infrequently accessed files that do not require the availability and durability of Amazon EFS Standard or Standard-IA. Amazon EFS One Zone-IA stores data in a single Availability Zone, which reduces the cost by 47% compared to Amazon EFS Standard-IA, but also increases the risk of data loss in the event of an Availability Zone failure. Using Amazon EFS One Zone-IA for migrating an NFS data store would not be cost-effective, as it would incur higher access charges and require additional configuration to enable lifecycle management. It would also compromise the availability and durability of the data.

AWS Storage Gateway - Amazon Web Services

Amazon S3 File Gateway - AWS Storage Gateway

Object Lifecycle Management - Amazon Simple Storage Service

[AWS Storage Gateway Volume Gateway - AWS Storage Gateway]

[Amazon Elastic File System - Amazon Web Services]

[Using EFS storage classes - Amazon Elastic File System]

by Nicolette at May 22, 2024, 08:21 AM

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1 months ago

Option C looks interesting, but I'm not sure if the incremental snapshots will be enough to meet the new regulations. It's always better to err on the side of caution when it comes to data retention.

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Tiera

3 days ago

Let's go with Option A to ensure we comply with the new regulations.

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Sage

10 days ago

I agree, Option A allows for easy management of monthly snapshots for 7 years.

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Lorrine

13 days ago

Option A seems like the best choice for long-term data retention.

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2 months ago

Option A seems like the most cost-effective solution. Storing the monthly snapshots in Amazon S3 Glacier Deep Archive for 7 years is a great way to minimize storage costs while ensuring long-term data retention.

upvoted 0 times