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What is a network?
It is a set of devices connected by communication links. A node can be a computer or any other device capable of sending and/or receiving data generated by other nodes on the network.
Define LAN, MAN and WAN?
LAN: A local area network (LAN) is a privately owned and links the devices in a single office, building or campus. It allows resources to be shared between personal computers and work stations. MAN: A metropolitan-area network (MAN) spreads over an entire city. It may be wholly owned and operated by a private company, eg local telephone company. WAN: A wide area network (WAN) provides long distance transmission of data, voice, image and video information over large geographic areas that comprise a country, a continent or even whole world.
What is TELNET ?
TELNET is a client –server application that allows a user to log on to a remote machine,giving the user access to the remote system. TELNET is an abbreviation of terminal Network.
What is switching?
Switching in data communication is of three types. 1. Circuit switching 2. Packet switching 3. Message switching
What is a Link?
link refers to the connectivity between two devices. It includes the type of cables and protocols used in order for one device to be able to communicate with the other.
What are the layers of the OSI reference model?
There are 7 OSI layers: Physical Layer Data Link Layer Network Layer Transport Layer Session Layer Presentation Layer Application Layer
What is backbone network?
Backbone network is a centralized infrastructure that is designed to distribute different routes and data to various networks. It also handles management of bandwidth and various channels.
What is a LAN?
LAN is short for Local Area Network. It refers to the connection between computers and other network devices that are located within a small physical location.
What is a node?
A node refers to a point or joint where a connection takes place. It can be computer or device that is part of a network. Two or more nodes are needed in order to form a network connection.
What are routers?
Routers can connect two or more network segments. These are intelligent network devices that store information in its routing table such as paths, hops and bottlenecks. With this info, they are able to determine the best path for data transfer. Routers operate at the OSI Network Layer.