A Software Company Hosts an Application on AWS with Resources

question 396

Multiple Choice

A software company hosts an application on AWS with resources in multiple AWS accounts and Regions. The application runs on a group of Amazon EC2 instances in an application VPC located in the us-east-1 Region with an IPv4 CIDR block of 10.10.0.0/16. In a different AWS account, a shared services VPC is located in the us-east-2 Region with an IPv4 CIDR block of 10.10.10.0/24. When a cloud engineer uses AWS CloudFormation to attempt to peer the application VPC with the shared services VPC, an error message indicates a peering failure. Which factors could cause this error? (Choose two.)

• A) The IPv4 CIDR ranges of the two VPCs overlap
• B) The VPCs are not in the same Region
• C) One or both accounts do not have access to an Internet gateway
• D) One of the VPCs was not shared through AWS Resource Access Manager
• E) The IAM role in the peer accepter account does not have the correct permissions

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