Exam Essentials
Know the components of a VPC. The key components of a VPC include at least one subnet, security groups, network access control lists (NACLs), and internet gateways.
Understand the different options for connecting to resources in a VPC. You can connect to resources in a VPC over the internet, a Direct Connect link, a VPC peering connection, or a virtual private network (VPN) connection.
Understand the difference between a Route 53 public hosted zone and a private hosted zone. A public hosted zone allows anyone on the internet to resolve records for the associated domain name. A private hosted zone allows resolution only from resources within the associated VPCs.
Be able to select the best Route 53 routing policy for a given scenario. All routing policies except the Simple routing policy can use health checks to route around failures. If you want to direct traffic to any available resource, Failover, Weighted, and Multivalue Answer routing policies will suffice. If performance...
