AWS Certified Cloud Practitioner
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A company needs to establish a connection between two VPCs. The VPCs are located in two different AWS Regions. The company wants to use the existing infrastructure of the VPCs for this connection.
Which AWS service or feature can be used to establish this connection?
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A
AWS Client VPN
B
VPC peering
C
AWS Direct Connect
D
VPC endpoints
Explanation:
Explanation
VPC peering is the correct answer because:
- VPC peering allows you to connect two VPCs together, enabling them to communicate as if they were in the same network
- It supports inter-region VPC peering, which specifically allows VPCs in different AWS Regions to connect
- It uses the existing infrastructure of the VPCs without requiring additional hardware or complex configurations
- The traffic between peered VPCs stays within the AWS network and doesn't traverse the public internet
Why the other options are incorrect:
- AWS Client VPN: This is for connecting individual users/devices to AWS resources, not for VPC-to-VPC connectivity
- AWS Direct Connect: This establishes a dedicated network connection from on-premises to AWS, not for VPC-to-VPC connections across regions
- VPC endpoints: These provide private connectivity to AWS services, not for connecting VPCs together
Key Point: For connecting VPCs across different AWS Regions, inter-region VPC peering is the appropriate service that leverages existing VPC infrastructure.
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