What is the data network?

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What is the data network?

What is the data network? A computer network or data network is a digital telecommunications network which allows nodes to share resources. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media.

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Computer networks come in many forms: Home networks, business networks, and the Internet are three common examples.

Here basic types of network connections exist:

Point-to-point:

In computer networking, Point-to-Point Protocol (PPP) is a data link layer (layer 2) communications protocol used to establish a direct connection between two nodes.

Broadcast/multicast:

Multicast is communication between a single sender and multiple receivers on anetwork.

Multipoint:

A multipoint connection is a communication channel between two or more clients of the network, where all data sent by one client is received by all other clients.

Difference Between Point-to-point and Multipoint Connection:

Main difference between point-to-point and multipoint connection is that in a point-to-point connection the link is only between two devices i.e. a sender and a receiver. On the other hand, in a multipoint connection ,the link is between a sender and multiple receivers.

What is the data network

 

What is a point to point link?

A point-to-point connection is a dedicated communication link between two systems or processes.

What is the broadcast address of the network?

A broadcast address is a logical address at which all devices connected to a multiple-access communications network are enabled to receive datagrams.

What is the difference between broadcast and multicast?

Multicasting identifies logical groups of computers. A single message can then be sent to the group.Broadcast is a packet that’s sent to all devices on specific network.

What is a Unicast?

Unicast is communication between a single sender and a single receiver over a network.