A company has a set of resources hosted in a VPC. They have acquired another company, and they have their own set of resources hosted in AWS. The requirement now is to ensure that resources in the VPC of the parent company can access the resources in the VPC of the child company. What is the best way to accomplish this with minimum costing involved?

Answer options:

A.Use a Direct Connect connection with a private VIF.B.Establish a NAT gateway to establish communication across VPCs.
C.Use a VPN connection to peer both VPCs.
D.Use VPC Peering to peer both VPCs.

Answer – D
VPC Peering allows you to connect VPCs together. The VPCs themselves can be in different regions and different AWS accounts.
Option A is incorrect since this would bear a high cost.
Options B and C are incorrect since you should use VPC peering.
For more information on VPC Peering, please refer to the below URL:
https://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-peering.html