To Run an Application, a DevOps Engineer Launches an Amazon

question 89

Multiple Choice

To run an application, a DevOps Engineer launches an Amazon EC2 instances with public IP addresses in a public subnet. A user data script obtains the application artifacts and installs them on the instances upon launch. A change to the security classification of the application now requires the instances to run with no access to the Internet. While the instances launch successfully and show as healthy, the application does not seem to be installed. Which of the following should successfully install the application while complying with the new rule?

• A) Launch the instances in a public subnet with Elastic IP addresses attached. Once the application is installed and running, run a script to disassociate the Elastic IP addresses afterwards.
• B) Set up a NAT gateway. Deploy the EC2 instances to a private subnet. Update the private subnet's route table to use the NAT gateway as the default route.
• C) Publish the application artifacts to an Amazon S3 bucket and create a VPC endpoint for S3. Assign an IAM instance profile to the EC2 instances so they can read the application artifacts from the S3 bucket.
• D) Create a security group for the application instances and whitelist only outbound traffic to the artifact repository. Remove the security group rule once the install is complete.

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Definitions:

Break-Even

The juncture where total costs and total revenues are the same, leading to neither profit nor loss.

Sales Dollars

The total revenue generated from the sale of goods or services, expressed in dollar terms.

Commercial Division

A segment within a company that focuses on the buying and selling of goods and services, often dealing with sales, marketing, and customer service.

Fixed Expenses

Costs that do not change with the level of production or sales activities within a certain range and time period.