Amazon RDS Backups

5 minutes 5 Questions

Amazon RDS Backups ensure data durability and enable data recovery by providing automatic and manual backup options. Automated backups take incremental snapshots of a database (including its transaction logs) and store them for a specified retention period. Backups are executed during a user-defined backup window, with the latest restorable time shared in the console. Manual backups, also known as DB snapshots, are created on-demand and stored indefinitely. Both backup types support point-in-time recovery and are kept encrypted, allowing users to restore data quickly and maintain data compliance.

Guide to Amazon RDS Backups

What is Amazon RDS Backups:
Amazon RDS Backups is an automated or manual snapshot feature that creates a backup of your relational database instance. These backups allow for rapid recovery of database instances and protection of your data.

Importance of Amazon RDS Backups:
Data loss can be catastrophic for businesses. As a result, the ability to quickly restore lost or corrupted data is vital. By providing scheduled and manual backups, Amazon RDS mitigates this risk, providing peace of mind and data continuity.

How it Works:
RDS creates automated backups of your DB instance during a defined backup window. Backups include transaction logs so that you can perform a point-in-time recovery of your instance. Manual snapshots can be made at any time.

Exam Tips: Answering Questions on Amazon RDS Backups:
For the exam, remember that automated backups occur once each day during the backup window, backups are retained for a defined period (1-35 days), and you can create a manual snapshot at any time which is retained until manually deleted. Tip: Be aware of the differences between a snapshot and an automatic backup, as well as the implications of their retention periods.

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Question 1

A company needs to recover a specific deleted record that is 15 minutes old from an Amazon RDS instance. Which recovery option should they use?

Restore from the latest manual snapshot Use AWS DMS to replicate the data to a new instance Perform a point-in-time recovery to a new instance using the latest available automatic backup Restore from the daily automated backup

Correct Answer: Perform a point-in-time recovery to a new instance using the latest available automatic backup

To recover a specific record, the best option is to use point-in-time recovery, which allows you to recover the database to a specific point within a custom window. Other options involve full backups or don't apply to recovery scenarios.

Question 2

A global company needs to improve the disaster recovery strategy for an Amazon RDS instance. They want to copy the latest backup from one region to another. What is the most cost-effective and automated solution?

Create a Lambda function to copy manual snapshot to another region Create a CloudWatch rule to monitor backup status and copy to another region Create a cross-region read replica Rely on AWS global infrastructure for automatic disaster recovery

Correct Answer: Create a cross-region read replica

To improve the disaster recovery strategy, a cross-region read replica is the best option as it is cost-effective and automatically replicates the RDS instance to another region, ensuring a seamless failover. Other options involve manual or unnecessary steps.

Question 3

A company has an RDS instance storing sensitive data, and they require backups to be created every 6 hours. Which solution best achieves this requirement?

Use Amazon S3 for backups and enable versioning Configure the backup retention period and set the backup window Configure an EC2 instance to create a manual snapshot every 6 hours Configure an AWS Lambda function to create a manual snapshot every 6 hours

Correct Answer: Configure the backup retention period and set the backup window

Amazon RDS creates automated backups by default, but it's required to configure the backup retention period and backup window to specify when the backups should occur. Other wrong answers involve manual snapshots or don't apply to RDS backups.

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