Load Balancer Tutorial - What is a Load Balancer - System Design Basics

In this video I'll show you what load balancers are, how they work, and why you'd want to use them for your project. Load Balancers aren't sexy, but they are pretty much the backbone of modern system design and architecture. There's surprisingly little content covering the topic despite how important it is. This is the first video in a series I'll be making covering all the main topics related to system design.

Load balancers are essential for building scalable and reliable systems, they work by acting as the entry point to your backend and then distributing the incoming traffic to your pool of backend servers. This load balancer tutorial will cover many of the pros and cons associated with load balancing, comparing hardware vs software load balancers and some of the tradeoffs with both. I'll also cover layer 4 vs layer 7 load balancers, what the differences are, and when to use each type.

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