The S3 Standard storage class is the default for objects uploaded to Amazon S3 unless a different storage class is explicitly specified during the upload process.
A VPC Peering Connection is a networking connection between two Amazon Virtual Private Clouds (VPCs) that enables resources in those VPCs to communicate with each other privately, as if they were within the same network.
A NAT (Network Address Translation) Gateway is an AWS-managed service that allows instances in a private subnet to access the internet or other AWS services, while preventing incoming traffic from reaching those instances. NAT Gateways are part of the Amazon Virtual Private Cloud (VPC) service.