IBM Exam C1000-142 Topic 1 Question 59 Discussion

Subnets are the foundational building blocks used to deploy cloud resources in your public cloud VPC. They are bound to a single zone and cannot span multiple zones or regions, which helps with security, reduces latency, and improves availability. Create multiple VPCs and subnets easily by using the suggested prefix ranges and preconfigured network security policies or design and define your own address prefixes and custom security policies. CIDR blocks 161.26/16 and 166.8/14 are both reserved and routed into every subnet. Read about our service endpoints available for IBM Cloud VPC. The default quota limit for the number of subnets that can be created within a VPC is 15.