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AWS : Elastic Load Balancer Exam Tips and Preparation Key Points

Start with what is Elastic Load Balancing? Elastic Load Balancing automatically distribute incoming application traffic to multiple destinations, such as Amazon EC2 instances, containers, IP address, and lambda functions. It can handle a variety of application traffic load in a single Availability Zone or multiple Availability Zones. Key points: The following two types  of load balancer: 1.  Internet Facing: has public IP 2.  Internal Load Balancer: routes traffic within a VPC There are three categories of Load Balancer: 1.  Application Load Balancer 2.  Network Load Balancer 3.  Classic Load Balance First Application Load Balancer Operates at Layer 7. Supports WebSockets and Secure WebSockets. Supports SNI. Supports IPv6. Second Network Load Balancer   ( The NLB is the recommended Load Balancer to be used at Layer 4) Operates at Layer 4. Preserves the source IP. Provides reduced latenc...