You have a web application that’s developed in Node.js. The code is hosted in the Git repository. You want to deploy this application to AWS. Which of the below 2 options can fulfill this requirement?

Answer options:

A.Create an Elastic Beanstalk application. Create a Docker file to install Node.js. Get the code from Git. Use the command "aws git.push" to deploy the application.
B.Create an AWS CloudFormation template that creates an instance with the AWS::EC2::Container resources type. With UserData, install Git to download the Node.js application and then set it up.
C.Create a Dockerfile to install Node.js. and get the code from Git. Create a Docker image with the Dockerfile and push the image to ECR. Perform the deployment on a new AWS Elastic Beanstalk application.
D.Create an AWS CloudFormation template that creates an Auto Scaling group. In UserData, get the Node.js application and start the application.

Answer – C and D
Option A is invalid because there is no "aws git.push" command
Option B is invalid because there is no AWS::EC2::Container resource type.
Elastic Beanstalk supports the deployment of web applications from Docker containers. With Docker containers, you can define your own runtime environment. You can choose your own platform, programming language, and any application dependencies (such as package managers or tools), that aren`t supported by other platforms. Docker containers are self-contained and include all the configuration information and software your web application requires to run.
For more information on Docker and Elastic beanstalk, please refer to the below link:
http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_docker.html
When you launch an instance in Amazon EC2, you have the option of passing user data to the instance that can be used to perform common automated configuration tasks and even run scripts after the instance starts. You can pass two types of user data to Amazon EC2: shell scripts and cloud-init directives. You can also pass this data into the launch wizard as plain text, as a file (this is useful for launching instances using the command line tools), or as base64-encoded text (for API calls).
For more information on Ec2 User data, please refer to the below link:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/user-data.html
Note: 
"git aws.push" with EB CLI 2.x - see a forum thread at https://forums.aws.amazon.com/thread.jspa?messageID=583202#jive-message-582979 . Basically, this is a predecessor to the newer "eb deploy" command in EB CLI 3+. 
This question was kept in order to be consistent with the exam.