Topic 1 Question 71

AWS Certified Solutions Architect - Associate

Topic 1 Question 71
A company runs a shopping application that uses Amazon DynamoDB to store customer information. In case of data corruption, a solutions architect needs to design a solution that meets a recovery point objective (RPO) of 15 minutes and a recovery time objective (RTO) of 1 hour. What should the solutions architect recommend to meet these requirements?
- Configure DynamoDB global tables. For RPO recovery, point the application to a different AWS Region.
- Configure DynamoDB point-in-time recovery. For RPO recovery, restore to the desired point in time.
- Export the DynamoDB data to Amazon S3 Glacier on a daily basis. For RPO recovery, import the data from S3 Glacier to DynamoDB.
- Schedule Amazon Elastic Block Store (Amazon EBS) snapshots for the DynamoDB table every 15 minutes. For RPO recovery, restore the DynamoDB table by using the EBS snapshot.
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- 正解だと思う選択肢: B
  A - DynamoDB global tables provides multi-Region, and multi-active database, but it not valid "in case of data corruption". In this case, you need a backup. This solutions isn't valid. B - Point in Time Recovery is designed as a continuous backup juts to recover it fast. It covers perfectly the RPO, and probably the RTO. https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/PointInTimeRecovery.html C - A daily export will not cover the RPO of 15min. D - DynamoDB is serverless... so what are these EBS snapshots taken from???
  
  👍 30
  123jhl02022/10/17
- 正解だと思う選択肢: B
  The best solution to meet the RPO and RTO requirements would be to use DynamoDB point-in-time recovery (PITR). This feature allows you to restore your DynamoDB table to any point in time within the last 35 days, with a granularity of seconds. To recover data within a 15-minute RPO, you would simply restore the table to the desired point in time within the last 35 days.
  
  To meet the RTO requirement of 1 hour, you can use the DynamoDB console, AWS CLI, or the AWS SDKs to enable PITR on your table. Once enabled, PITR continuously captures point-in-time copies of your table data in an S3 bucket. You can then use these point-in-time copies to restore your table to any point in time within the retention period.
  
  CORRECT Option B. Configure DynamoDB point-in-time recovery. For RPO recovery, restore to the desired point in time.
  
  👍 5
  Buruguduystunstugudunstuy2022/12/20
- answer is D
  
  👍 1
  priya22242022/10/16
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