You Have a Web Application (App

question 319

Multiple Choice

You have a web application (app.mycompany.com) running on an EC2 instance with a single elastic network interface in a subnet in a VPC. Because of a network redesign, you need to move the web application to a different subnet in the same Availability Zone. Which of the following migration strategies meets the requirements?

• A) Create an elastic network interface in the new subnet. Attach this interface to the instance, and detach the old interface.
• B) Launch a new instance in the subnet via an AMI created from the instance, and redirect new connections to this new instance using DNS. Decommission the old instance.
• C) Make an API call to change the subnet association of the elastic network interface.
• D) Change the IP addresses manually to another subnet within the server operating system.

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Definitions:

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