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NETWORKING

Introduction to Networks

A network is a group of computers and other devices, such as a Personal Digital Assistant (PDA) or a printer, connected together with a medium, such as a cable. A network can be created to enable the devices communicate or share resources, such as a file or a printer. A network provides various features Data […]

Broadcast Storm

Broadcast storm, an intruder sends a large number of fake broadcast packets to all the computers on the network. As a result, each computer forwards these packets to the specified fake target address, increasing the amount of network traffic excessively. These packets remain on the network, moving from one computer to another until they completely […]

The Application Layer

The Application layer provides an interface between the user and the network. It supports a number of software programs and end-user processes that act as a link between the user and the network. As a result, all network applications and protocols reside on this layer. This is where it gets its name, Application. Some of […]

HUB

What is HUB

A hub is a central network device used to connect multiple nodes to form a single network. It contains a number of ports to connect multiple computers. When a computer connected to a hub needs to communicate, it sends data packets to the hub. When a data packet arrives at the hub, it broadcasts the […]

Personal Area Network

A PAN (Personal Area Network) is a small network established for communication between different devices, such as laptops, computers, mobiles, and PDAs. The network extends to a range of 10 meters. The computers form a small communication network for exchange of data. For example, if you have a presentation in your PDA and you want […]

Introduction to Networks

A network is a group of computers and other devices, such as a Personal Digital Assistant (PDA) or a printer, connected together with a medium, such as a cable. A network can be created to enable the devices communicate or share resources, such as a file or a printer. A network provides various features. Data sharing: […]

What is Metropolitan Area Network(Man)

MANsare relatively larger than LANs and extend across a city or a metropolitan. This is how they derive their name. A MAN is created by two or more LANs located at different locations in a city. For example, when the network of computers at different colleges of a university is connected together, it forms a […]

The Internet Layer

 The Internet layer that determines which protocol is responsible for the transmission of data. This layer uses the following protocols to transmit data. IP: It is a connectionless delivery system that delivers the data to the intended receiver. However, it does not guarantee the delivery of the data. Internet Control Message Protocol (ICMP): It shares […]

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How to build a web site?

The creation and maintenances of website broken down into a process of steps. Following these steps will immensely help you to build a website. All the steps in website creation and maintenance required and effort, but they don’t necessary involve any technology for process       The process of web site creation. Planning Design […]

Modems

A modem is a hardware device for linking a computer through the telephone lines to the internet. Modems convert digital data (electronic signal representing binary numbers) to analog data (signals that have many variations) so that the data can travel over the telephone lines. After the analog signal arrives, the modem on the receiving end […]

Virtual Machine Approach

The virtual machine approach, a virtual machine software layer on the bare hardware of the machine gives the illusion that all machine hardware (i.e. the processor, main memory, secondary storage, etc.) is at the sole disposal of each user. A user can execute the entire instruction set, including the privileged instructions. The virtual machine software […]