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1. What is DNS and Why Name Resolution Exists DNS (Domain Name System) is a hierarchical, distributed naming system that acts as the phonebook of the internet.It translates human-readable domain names into machine-readable IP addresses. Humans remem...

Load balancers spread incoming client requests(you can call it load) evenly across servers using smart algorithms. We will discuss few most used algorithms. Round Robin: In the Round Robin method, the load balancer distributes incoming client reque...

Imagine a call center with 10 employees working the same shift. During the day, 1,000 customer calls come in. You’d expect the calls to be distributed roughly evenly—maybe 100 per employee, right? But now imagine this: One employee ends up getting 20...

JavaScript has come a long way since its early days. Remember when we had to use var for everything and concatenate strings with + signs? Shudders. If you're still writing JavaScript like it's 2014, you're not just missing out on some syntactic sugar...

Ever been on a website that freezes when you click a button? Or watched that spinning wheel of death as your app struggles to load data? Chances are, someone didn't understand asynchronous JavaScript. And honestly, I didn't either for the longest tim...

You've built a beautiful website with perfect HTML and CSS. It looks stunning. But when users visit, they click buttons and... nothing happens. Your masterpiece feels lifeless. That's because you're missing the secret ingredient that brings websites ...

Ever wondered how a button click changes the entire layout of your favorite website? Or how typing into a search box instantly shows matching results? The secret isn't pixie dust—it's the powerful relationship between JavaScript and the Document Obje...
