A Company Is Using an AWS CloudFormation Template to Deploy

question 212

Multiple Choice

A company is using an AWS CloudFormation template to deploy web applications. The template requires that manual changes be made for each of the three major environments: production, staging, and development. The current sprint includes the new implementation and configuration of AWS CodePipeline for automated deployments. What changes should the DevOps Engineer make to ensure that the CloudFormation template is reusable across multiple pipelines?

• A) Use a CloudFormation custom resource to query the status of the CodePipeline to determine which environment is launched. Dynamically alter the launch configuration of the Amazon EC2 instances.
• B) Set up a CodePipeline pipeline for each environment to use input parameters. Use CloudFormation mappings to switch associated UserData for the Amazon EC2 instances to match the environment being launched.
• C) Set up a CodePipeline pipeline that has multiple stages, one for each development environment. Use AWS Lambda functions to trigger CloudFormation deployments to dynamically alter the UserData of the Amazon EC2 instances launched in each environment.
• D) Use CloudFormation input parameters to dynamically alter the LaunchConfiguration and UserData sections of each Amazon EC2 instance every time the CloudFormation stack is updated.

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Definitions:

Reactive Power

The portion of electricity that oscillates between the source and load, stored and discharged by inductive or capacitive components, not converted to work.

Inductive Reactance

The opposition that an inductor presents to the change in current flow due to its stored magnetic energy, expressed in ohms.

Parallel Circuit

An electrical circuit in which components are connected across common points or junctions to provide multiple paths for current to flow.

Inductive Reactance

The opposition that an inductor presents to alternating current, due to the inductor's tendency to resist changes in current flow, measured in Ohms (Ω).