AWS Advanced Networking Speciality 1.3 AWS Advanced Networking: Different types of load balancers and how they meet requirements for network design, high availability, and security

https://medium.com/towards-aws/aws-advanced-networking-task-statement-1-3-c457fa0ed893 — Has intro details for the speciality exam topic

Different types of Load-Balancers

• CLB — Classic Load Balancer
• ALB — Application Load Balancer
• NLB — Network Load Balancer
• GLB — Gateway Load Balancer

High Availability Aspect: ELB (Can be any load-balancing) can distribute traffic across various different targets, including EC2-Instances, Containers, and IP addresses in either a single AZ or multiple AZs within a region.

Health Checks: An additional health check can be included to ensure that the end hos serving the application is healthy. This is typically done through HTTP status codes, with a return value 200 indicating a healthy host. If discrepancies are found during the health check, the ELB can gracefully drain traffic and divert it to…