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Let's first start

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with our Classic Load Balancer

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and these may not be as prominent in the exam

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but they may still be mentioned

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and they're still very valid load balancers.

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So they support two things.

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The TCP or traffic or HTTP and HTTPS

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and TCP is called Layer 4 and HTTPS is called Layer 7.

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I'm not gonna get too deep about what these layer mean

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but just know that TCP is Layer 4

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and the other two are Layer 7.

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So the health checks are either TCP based or HTTP based

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and what you will get out of a load balancer,

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a Classic Load Balancer is a fixed host name.

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And we'll see this in the hands-on as well.

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So what we'll set up in this lecture is a client

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tucking to our Classic Load Balancer on an HTTP listener.

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And internally, that CLB will be redirecting the traffic

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into our EC2 instances.

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So let's have a look at how we can do this in the console.