Which of the following are characteristics of Amazon VPC subnets? (Choose 2)
Each subnet spans at least 2 Availability Zones to provide a high-availability environment.
Each subnet maps to a single Availability Zone.
CIDR block mask of /25 is the smallest range supported.
By default, all subnets can route between each other, whether they are private or public.
Instances in a private subnet can communicate with the Internet only if they have an Elastic IP.