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Amazon RDS Parameter Groups

5 minutes 5 Questions

Amazon RDS Parameter Groups is a feature that allows you to manage and apply configuration settings to your RDS Instances. Parameter Groups act as containers for the various engine configuration values that control the behavior of your database engine. By modifying these parameters, you can optimiz…

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AWS Certified Solutions Architect - Amazon RDS Parameter Groups Example Questions

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Question 1

An Amazon RDS database is experiencing performance issues that you suspect are caused by DB parameter settings. You want to identify the differences between the custom DB parameter group in use and the engine’s default parameter group using a built-in capability in the AWS Management Console, without exporting data or using external tools. Which option should you choose?

Correct Answer: Use the 'Compare Parameter Groups' feature in the AWS Management Console.

The Compare Parameter Groups feature in the RDS console provides a built-in, side-by-side view of two DB parameter groups and highlights differences in parameter values. It requires no exports or external tools. CloudTrail focuses on API activity and change history rather than producing a parameter-by-parameter diff, downloading JSON and diffing violates the constraint of not exporting data, and RDS does not support querying an instance to directly output parameter group differences.

Question 2

Your company is migrating from a self-managed MySQL database to an Amazon RDS instance with the MySQL engine. You need to ensure that the custom database parameter settings from your current MySQL setup are applied to the new RDS instance. Which of the following approaches is the most appropriate and supported method to achieve this?

Correct Answer: Create a custom RDS parameter group using the RDS console or API and modify the respective settings.

When migrating from a MySQL database to an Amazon RDS instance with the MySQL engine, the correct approach to import custom parameter settings is to create a custom RDS parameter group. This can be done using the RDS console or API, allowing you to modify the specific settings you need. Custom parameter groups in RDS provide a way to manage database engine configuration values that override the default parameter group settings. This method ensures that your custom settings are properly applied to the RDS instance without directly modifying the database or using unsupported methods. It's a secure and recommended way to customize your RDS instance configuration while maintaining compatibility with Amazon RDS management features.

Question 3

A database admin wants to modify a parameter value in the RDS parameter group but noticed the parameter value is grayed out in the console. What could be the possible reason?

Correct Answer: The parameter is a static parameter that can't be modifed.

The parameter might be a static parameter and can't be modified, which is why it appears grayed out in the console. The other options would either give an error message or do not apply to the scenario.

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