AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A company is using AWS to host their databases. They are required by regulatory standards to maintain backups for seven years. The databases are not modified frequently. How should the company set up their backup and retention policy to optimize costs?
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Take daily backups and transition the backups to Amazon Glacier Deep Archive after 30 days for long-term storage.
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Take backups every hour and keep them in Amazon S3 Standard-Infrequent Access for the full seven years.
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Take daily backups and store all of them in Amazon S3 Standard for the required seven-year retention period.
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Take weekly backups and store them in Amazon S3 Standard for seven years without transitioning to any other storage class.
The correct answer is to take daily backups and transition the backups to Amazon Glacier after 30 days since it is a cost-effective solution for infrequent access and long-term retention. Frequent backups (hourly) with immediate transition to Amazon Glacier would be unnecessary and could result in higher costs due to the frequent Glacier retrieval charges. Taking weekly backups would not meet the requirement for daily backups. Keeping all backups in Amazon S3 standard for seven years would be the most expensive option due to the higher storage costs compared to Amazon Glacier.
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What is Amazon Glacier Deep Archive?
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What are the differences between S3 Standard and S3 Standard-Infrequent Access?
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Why are daily backups recommended instead of weekly in this scenario?