What is Computer Network?

Network:- A group of computers that is connected by cable or other devices to share their data, information and devices with each other is called Network.

A computer network is a digital telecommunications network which allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections between nodes. These data links are established over cable media such as wires or optic cables, or wireless media such as Wi-Fi.

 There are two types of Network:-

1. Peer-to Peer:-

Peer-to Peer network is also called Workgroup. In Workgroup there is no dedicated server. All Computers are equal, Every Computers works both as a client and a Server.  In Workgroup all users account such as user name and password are available in the SAM database SAM stands for Security Account Management Database.

2. Client Server:-

Client Server network is also called DOMAIN. In Domain there is one dedicated server, That Server is called DC. DC stands for Domain Controller. In Client Server Network all users account such as user name and password are available in the active directory database. Domain is a security boundary in the Network.

There are many benefits of Domain such as :-

A. Single Logon

B. Single User Account

C. Centralized Management

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