What is CDN and how jQuery is related to it?

Answer:

CDN - It stands for Content Distribution Network or Content Delivery Network.

Generally, a group of systems at various places connected to transfer data files between them to increase its bandwidth while accessing data. The typical architecture is designed in such a way that a client access a file copy from its nearest client rather than accessing it from a centralized server.

So we can load this jQuery file from that CDN so that the efficiency of all the clients working under that network will be increased.

Example :

We can load jQuery from Google libraries API

<script type="text/javascript" language="Javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>