What is DNS and Hyperlink?

DNS, or Domain Name System, is a system used to translate human-friendly domain names, such as www.google.com, into the numerical IP addresses needed for locating and identifying computer services and devices. This system is an essential component of the functionality of the internet.

Here's a step-by-step explanation of how DNS works:

1. When you type a URL into your web browser, your computer sends a request to the DNS servers to look up the IP address for that URL.
2. The DNS server searches its database to find the IP address that matches the URL you entered.
3. Once the DNS server finds the matching IP address, it sends that information back to your computer.
4. Your computer then uses that IP address to connect to the website.

A hyperlink, on the other hand, is a reference in a document that a reader can directly follow, or that is followed automatically. In most web browsers, hyperlinks are displayed in underlined blue text when they have not been clicked, but underlined purple text when they have.

Here's a step-by-step explanation of how a hyperlink works:

1. A hyperlink is created in a web page using HTML code, with the "href" attribute followed by the URL of the page you want to link to.
2. When a user clicks on the hyperlink, the browser sends a request to the server hosting the destination webpage.
3. The server responds to the request by sending the files associated with the destination webpage.
4. The browser then renders the webpage for the user to view.