Lets know about WAN(wide area networking)

In the World there is a lot of firms are doing business ,which have many branches in different countries and cities but these have only one HQ (head quarter ) .In the sence of security and safety purposes all the branches of  the firm have to connected to the HQ all the time, So that the main server of HQ be updated all the time that whats happening in the branches.

To connect all the branches of any firm in different countries and cities is called WAN.  There is many ways of  WAN  (wide area networking)

1.DXX

2.Radio links

3.VSAT

4.optical fiber

Hello world!

Welcome to WordPress.com. After you read this, you should delete and write your own post, with a new title above. Or hit Add New on the left (of the admin dashboard) to start a fresh post.

Here are some suggestions for your first post.

1. You can find new ideas for what to blog about by reading the Daily Post.
2. Add PressThis to your browser. It creates a new blog post for you about any interesting  page you read on the web.
3. Make some changes to this page, and then hit preview on the right. You can always preview any post or edit it before you share it to the world.