What is the main purpose of the Default VPC in AWS?

The main purpose of the Default VPC in AWS is to simplify instance launching with pre-configured settings. When a new AWS account is created, AWS automatically provisions a Default Virtual Private Cloud (VPC) in each AWS region. This Default VPC is equipped with a default subnet in each Availability Zone, making it straightforward for users to launch EC2 instances without needing to set up their own networking components, such as subnets, route tables, and internet gateways.

The Default VPC comes with built-in configurations that allow instances to communicate with each other and the internet right away. It provides a ready-to-use environment where the user does not need to have deep networking knowledge to deploy applications quickly. This is particularly beneficial for new users or for those who want to get started with minimal setup complexity.

Other options do not align with the primary purpose of the Default VPC. While efficiency and security are essential considerations in AWS, they are not the main objectives of the Default VPC. The Default VPC specifically addresses the ease of use and operational simplicity for launching resources in the AWS cloud.