Subnets reside within one Availability Zone and cannot span zones. This is an important point that can come up in the exam, so remember that one subnet equals one Availability Zone. You can, however, have multiple subnets in one Availability Zone.
- Chapter 4 Amazon Virtual Private Cloud (Amazon VPC)
- from AWS Certified Solutions Architect Official Study Guide
- Publisher: Sybex
- Released: October 2016