A Company Runs an Application on an Amazon EC2 Instance

question 546

Multiple Choice

A company runs an application on an Amazon EC2 instance backed by Amazon Elastic Block Store (Amazon EBS) . The instance needs to be available for 12 hours daily. The company wants to save costs by making the instance unavailable outside the window required for the application. However, the contents of the instance's memory must be preserved whenever the instance is unavailable. What should a solutions architect do to meet this requirement?

• A) Stop the instance outside the application's availability window. Start up the instance again when required.
• B) Hibernate the instance outside the application's availability window. Start up the instance again when required.
• C) Use Auto Scaling to scale down the instance outside the application's availability window. Scale up the instance when required.
• D) Terminate the instance outside the application's availability window. Launch the instance by using a preconfigured Amazon Machine Image (AMI) when required.

Understand the interpretation of confidence intervals and their importance in statistical inference.

Distinguish between different types of variables in a multiple regression model.

Recognize the significance of statistical measures in assessing model fit and the relationships between variables.

Differentiate between simple and multiple linear regression models.

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Definitions:

Misbehavior

Actions or conduct that deviate from accepted standards or rules, often resulting in disruptive or undesirable outcomes in a group or individual context.

Magnitude

The size, extent, or importance of something, often used in a quantitative sense to describe intensity or scale.

Overcorrection

A term that encompasses several different techniques and behavioral principles to reduce inappropriate behavior. The objective is to have students practice repeatedly a positive behavior contingent on the performance of an inappropriate behavior.

Appropriate Behaviors

Actions or reactions of an individual in a given situation that are considered suitable, acceptable, or desired according to societal norms or specific settings.