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Question 312 - DBS-C01 discussion

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A financial company is hosting its web application on AWS. The application's database is hosted on Amazon RDS for MySQL with automated backups enabled.

The application has caused a logical corruption of the database, which is causing the application to become unresponsive. The specific time of the corruption has been identified, and it was within the backup retention period.

How should a database specialist recover the database to the most recent point before corruption?

A.
Use the point-in-time restore capability to restore the DB instance to the specified time. No changes to the application connection string are required.
Answers
A.
Use the point-in-time restore capability to restore the DB instance to the specified time. No changes to the application connection string are required.
B.
Use the point-in-time restore capability to restore the DB instance to the specified time. Change the application connection string to the new, restored DB instance.
Answers
B.
Use the point-in-time restore capability to restore the DB instance to the specified time. Change the application connection string to the new, restored DB instance.
C.
Restore using the latest automated backup. Change the application connection string to the new, restored DB instance.
Answers
C.
Restore using the latest automated backup. Change the application connection string to the new, restored DB instance.
D.
Restore using the appropriate automated backup. No changes to the application connection string are required.
Answers
D.
Restore using the appropriate automated backup. No changes to the application connection string are required.
Suggested answer: B

Explanation:

The point-in-time restore capability of Amazon RDS for MySQL allows you to create a new DB instance with the same configuration as the original one, but with data restored to a specific time within your backup retention period.You can specify any time within your backup retention period, up to the last five minutes of your DB instance's usage1. This feature is useful for recovering from logical corruption or user errors that affect your database.

However, when you use the point-in-time restore capability, you are creating a new DB instance with a different endpoint. Therefore, you need to change the application connection string to point to the new, restored DB instance.You can also delete or rename the original DB instance if you no longer need it1

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asked 16/09/2024
Roberto Recine
50 questions
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