AWS Certified Solutions Architect Associate · Free Practice Question Medium
Question 33
A company has two accounts for perform testing and each account has a single VPC: VPC-TEST1 and VPC-TEST2. The operations team require a method of securely copying files between Amazon EC2 instances in these VPCs. The connectivity should not have any single points of failure or bandwidth constraints.
Which solution should a Solutions Architect recommend?
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A
Create a VPC peering connection between VPC-TEST1 and VPC-TEST2.
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B
Create a VPC gateway endpoint for each EC2 instance and update route tables.
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C
Attach a Direct Connect gateway to VPC-TEST1 and VPC-TEST2 and enable routing.
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D
Attach a virtual private gateway to VPC-TEST1 and VPC-TEST2 and enable routing.
Reveal correct answer
Correct answer: A
Explanation
A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IPv4 addresses or IPv6 addresses. Instances in either VPC can communicate with each other as if they are within the same network.
You can create a VPC peering connection between your own VPCs, or with a VPC in another AWS account. The VPCs can be in different regions (also known as an inter-region VPC peering connection).
CORRECT: "Create a VPC peering connection between VPC-TEST1 and VPC-TEST2" is the correct answer.
INCORRECT: "Create a VPC gateway endpoint for each EC2 instance and update route tables" is incorrect. You cannot create VPC gateway endpoints for Amazon EC2 instances. These are used with DynamoDB and S3 only.
INCORRECT: "Attach a virtual private gateway to VPC-TEST1 and VPC-TEST2 and enable routing" is incorrect. You cannot create an AWS Managed VPN connection between two VPCs.
INCORRECT: "Attach a Direct Connect gateway to VPC-TEST1 and VPC-TEST2 and enable routing" is incorrect. Direct Connect gateway is used to connect a Direct Connect connection to multiple VPCs, it is not useful in this scenario as there is no Direct Connect connection.
References:
https://docs.aws.amazon.com/vpc/latest/peering/what-is-vpc-peering.html
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Discussion
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