Network is a connection of two or more systems which are used to share resources and information.Network CommunicationFlow of information among the group of members is a communication network. Network helps managers to establish contacts in different patterns through communication flows.The network depends on the magnitude of the organisation, nature of communication channels in the organisation and the number of persons involved in the process. There can be many patterns of communication networks.Function of Communication devicesThe functions of communication networks include the following −It is the way of coordinating the activities of individuals, relationships, groups and other sub-units within the ... Read More

Dynamic Host Configuration Protocol (DHCP) is a network management protocol which is used to automate the process of configuring devices on IP networks. Therefore it allows them to use network services like DNS, NTP or any other communication protocol based on UDP or TCP.DHCP snoopingDHCP snooping is a series of techniques in computer networking, which are applied for improving the security of a DHCP infrastructure.When DHCP servicers are allocating IP addresses to the client on the LAN, DHCP snooping can be configured on LAN switches in order to prevent malicious or malformed DHCP traffic, or rogue DHCP servers.Apart from that, ... Read More

Let us learn the concept of object and component.ObjectIt is defined as a concept, thing or abstract with meaning.FeaturesThe features associated with object are as follows −StateOperationAttributesRepresent something realProvides an abstractionSelf-containedClearly defined.ComponentIt can be defined as a collection of objects which provides a set of services to other systems.For example − components include code which provides graphic facilities, network services, and a search set of tables in the database.A component is a self-contained entity which provides functionality to its environment and also imports functionality from its environment using well defined and open interfaces.The components that differ from objects are as ... Read More

To begin with, let us learn the concepts of firewall and proxy server.FirewallIt is used to provide security, mostly from external networks such as the Internet. It is the combination of software and hardware to allow, deny, monitor, and block any and all data transmissions occurring from a specified internal network.Firewalls evaluate, allow, or deny network traffic based on certain predefined rules set-up based on IP addresses or its range, port numbers, protocols, and few other factors. It provides good traffic management.Firewalls defend against external threats refusing or denying unauthorized requests, transmissions, and connections to the router, network, application software, ... Read More

Let us begin by understanding the concepts of advanced message queuing protocol (AMQP) and HyperText Transfer Protocol (HTTP)AMQPAdvanced message queuing protocol (AMQP) is a message protocol that deals with publishers and consumers. The publishers produce the message whereas the consumer picks the message and processes it.Given below is the pictorial representation of AMQP −This protocol is used in client-server messaging and in IOT device management. It allows the messages to be passed between applications.AMQP is a new standard design to meet financial institutions and it enables the interoperation, sharing which allows business to work together in a wide infrastructure.AMQP secure ... Read More

Netcat is a networking utility with the help of TCP/IP protocol which reads and writes data across network connections. Netcat is built as a secure back-end tool and can be used to send files from a client to a server and back directly with other programmes and scripts.At the same time, it's a network debugging and exploration platform rich in features that can define network parameters while also creating a tunnel connection to a remote host.Although Netcat can do many things, its primary objective and most desirable features are as follows −To build a connection from the server to the ... Read More

The full form of WWW is World Wide Web which is the internet that we are using nowadays. Tim Berner’s lee, a British scientist in CERN, invented the World Wide Web (WWW) in 1989.Originally it was meant to meet the demand for automatic information sharing between scientists of universities and institutions around the world.Later on the commercial potential in web makes the growth of web in an exponential paced manner. It is kind of a store where all the websites and documents are stored and we access those using different websites and their domains. The resources are transferred to us ... Read More

The Full form of AURP is “AppleTalk Update-based Routing Protocol”. AppleTalk tunnelling permits a corporation chairman to associate a minimum of two local internets through an unfamiliar organization framework to shape a huge wide region organization (WAN).ExampleAn AppleTalk WAN may comprise of a minimum of two local AppleTalk internets associated through a tunnel supporting a TCP/IP web. In such an AppleTalk WAN, local internets use AppleTalk protocols, while the unfamiliar organization framework utilizes an alternate protocol family. A tunnel is often either an unfamiliar organization framework or a highlight point interface.There are two kinds of tunnels, double endpoint tunnels and ... Read More

Near-me Area Network (NAN) may be a sensible communication network centred around communication between remote devices, for instance, Smartphones and private Digital Assistants then on inside a closeness area. This Near-me Area network is worked over existing actual network foundations.In basic during a Local Area Network (LAN) all of the associated devices are within the same network segment yet if there should arise an event of Near-me Area Network the associated devices over NAN could be utilizing diverse network frameworks.For instance, consider two smartphone clients who are geologically close however utilizing network administrations from various mobile transporters.Regardless of whether the ... Read More

HTTP stands for HyperText Transfer Protocol. It is an application protocol.Using hyperlinks embedded in hypertext the web developers are able to connect web pages. HTTP is a base of data communication for WWW (World Wide Web). HTTP was invented by Tim Berners-Lee at CERN in 1989.HTTP acts as a request-response protocol in the client-server computing model. For instance, let us consider a browser as a client and an application running on a computer hosting a website as a server.The client first initiates a HTTP request message to the server.The server then collects requested resources such as HTML files or any ... Read More