Your company has a set of EC2 Instances and On-premise. They now want to automate the deployment of their applications using the AWS Code Deploy tool in AWS. Which of the following is not needed in this scenario?

Answer options:

A.Ensure both EC2 Instances and On-premise servers have the Code Deploy agent installed.
B.Ensure both EC2 Instances and On-premise servers can connect to the Code Deploy service.
C.Ensure that On-premise servers use an IAM role ARN to authenticate requests.
D.Ensure both EC2 Instances and On-premise servers have instance profiles attached to them.

Answer – D
On-premises instances do not use IAM instance profiles.
All other options are incorrect because the question asks which one is not needed. 
Please refer to the below links in section `Pre-requisites` for instance profile related to On-premises servers.
https://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use_switch-role-ec2_instance-profiles.html
https://docs.aws.amazon.com/en_pv/codedeploy/latest/userguide/instances-ec2-configure.html
https://docs.aws.amazon.com/codedeploy/latest/userguide/tutorials-on-premises-instance.html