← CLF-C02 Study Guide
Chapter 5 · 10% of the exam
Networking & Delivery
VPC, security groups vs NACLs, Route 53, CloudFront, load balancing, and Auto Scaling.
Topics
- 5.1
VPC
Logically isolated network: subnets, route tables, IGW, NAT, security groups, NACLs.
- 5.2
Security Groups vs NACL
Security groups are stateful at the ENI; NACLs are stateless at the subnet.
- 5.3
Route 53
DNS: domain resolution, routing, health checks, traffic policies.
- 5.4
CloudFront
CDN delivering cached content from edge locations worldwide.
- 5.5
ELB
Distributes traffic across targets for availability and scale.
- 5.6
Auto Scaling
Automatically adjusts EC2 capacity with demand — ties to elasticity.