Which elements make up the AWS Cloud global infrastructure? (Choose two.)

The AWS Cloud global infrastructure is built upon Regions and Availability Zones. AWS Regions are distinct geographic areas, each designed to be isolated from other Regions to achieve the greatest possible fault tolerance and stability. Within each Region, there are multiple, isolated locations known as Availability Zones. These Availability Zones are physically separate data centers, each with independent power, networking, and cooling, connected by low-latency links. This architecture allows customers to run applications across multiple Availability Zones for high availability and fault tolerance. Amazon ElastiCache, Amazon S3, and Amazon VPC are AWS services that run within this infrastructure, but they are not foundational elements of the global infrastructure itself. ElastiCache is a caching service, S3 is an object storage service, and VPC is a virtual network service.