In an office 20 computers are on a network Sahil wants to connect his computer to a network so that he can participate in network communication suggest him what should he do

Hope it helps dude the second paragraph is not part of your question but it's good to give information about the answer .

Explanation:

He should use lan network.

A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link and typically share the resources of a single processor or server within a small geographic area (for example, within an office building). Usually, the server has applications and data storage that are shared in common by multiple computer users. A local area network may serve as few as two or three users (for example, in a home network) or as many as thousands of users (for example, in an FDDI network).