Bus network. A bus network follows the LAN topology, where devices in a single LAN are attached directly to a transmission line known as a bus. All signals pass through all devices, and the recipient device recognizes the signals intended for it.

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In addition, many offices only have one printer or a few printers that are shared by everyone. Without a network, the IT department would have to connect every single computer to the printer, which is difficult to implement from a technical standpoint.

Access Control: Mechanisms that restrict access to network resources based on user identity and role.

Definition: Network A network is a group of two or more computers or other electronic devices that are interconnected for the purpose of exchanging data and sharing resources.

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Computer networks are especially beneficial for larger and globally spread-out organizations, as they can use a single common network to connect with their employees.

A variety of protocols and algorithms are also used to specify the transmission of data among endpoints.

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This internal IP address is used only for communication between the participants in the local network. For communication on the Internet, external IP addresses 男同网 are used that are automatically assigned by the Net provider.

Flexibility. Today's computer networks enable people to use flexible communication and resource-sharing methods based on their needs and preferences. For example, some people might use email or instant messaging to communicate, while others might prefer using an app such as WhatsApp.

Application layer. Security protocols, such as Transport Layer Security, operate at this layer and play an integral part in ensuring network security. This is the abstraction layer that communicates directly with applications and defines how high-level apps should access the network to start a data transfer.

The working of Computer Networks can be simply defined as rules or protocols which help in sending and receiving data via the links which allow Computer networks to communicate. Each device has an IP Address, that helps in identifying a device.

Before the advent of modern networks, communication between different computers and devices was very complicated. Computers were connected using a LAN cable.