AWS (Amazon Web Services) Certification Practice Exam

What is the purpose of VPC Peering in AWS?

1. To connect a public subnet to the internet

2. To enable communication between two private virtual clouds

3. To allow direct connections from a data center to AWS

4. To facilitate multi-region connections

The correct answer is: To enable communication between two private virtual clouds

VPC Peering is a crucial feature within AWS that allows for direct communication between two Virtual Private Clouds (VPCs). These VPCs can be in the same AWS account or in different accounts, and they may exist within the same region or across different regions. The primary purpose of VPC Peering is to enable secure and efficient network communication between different VPCs without the need for a public internet connection or a VPN. When two VPCs are peered, they can exchange traffic directly as if they were part of the same network. This connection is private and does not require data to traverse the public internet, which enhances security and decreases latency. Also, VPC Peering supports a variety of use cases such as sharing resources like databases or applications hosted in different VPCs, thus simplifying networking complexities while maintaining isolation between different VPCs. The other options do not accurately represent the primary function of VPC Peering. Connecting a public subnet to the internet relates to internet gateways rather than peering, while enabling direct connections from a data center to AWS pertains to services like AWS Direct Connect. Facilitating multi-region connections is also not the key purpose since VPC Peering primarily concerns connections between two VPCs, regardless of