Azure Application Gateway is a web traffic load balancer that allows us to handle the traffic to web applications. Azure Application Gateway can make routing decisions depending on additional attributes of an HTTP request. For example URI path or host headers. You can route traffic depending on the incoming URL. So, if /images is in the incoming URL, you can route traffic to a particular server configured for images. If /video is in the URL, that traffic is routed to another pool that's configured for videos.
You can check out this Azure Training program by Intellipaat if you are interested in Azure.
Also, watch this video on Azure Applications:
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