What method provides secure, private communication between cloud environments without needing additional hardware?

VPC Peering is an important method for establishing secure and private communication between cloud environments. It allows two Virtual Private Clouds (VPCs) to connect directly with each other, ensuring that the traffic between them remains private and secure. This connection uses the service provider's internal network, which shields the data from exposure to the public internet. Consequently, it does not require any additional hardware, making it a practical solution for organizations seeking to enhance their cloud networking capabilities without incurring the costs associated with additional devices or infrastructure.

This method is particularly beneficial in multi-cloud or hybrid-cloud scenarios, where secure and seamless interaction between different cloud services is essential. VPC Peering simplifies resource sharing and communication, such as accessing services and databases across different VPCs, while maintaining high throughput and low latency.