PBX represents private branch exchange. It is a private mobile network used within an enterprise. It is a business-oriented phone system created to supply effective voice communications among the users of an organization.It is performing as the phone company’s central office within an organization, a PBX facilitates as the exchange point and point for routing calls.PBX enables users to generate their own telephone network inside a company or organisation. With this system, employees can connect internally for collaboration objectives and externally, with users, shareholders, and several contacts using channels such as VoIP or ISDN.Every device linked to the PBX, from ... Read More

Let us understand what the Interior Gateway Routing Protocol (IGRP) is.IGRPIGRP represents the Interior Gateway Routing Protocol. It is a protocol that was generally developed for routing by Cisco Systems in the 1980s. The objective of IGRP is to develop IGRP to support a routing protocol to be used with the autonomous system architectures.IGRP uses a sequence (vector) of metrics. Internetwork delay, bandwidth, dependability, and load are all part of the routing decision. The network controller can set the weighting element for each of these metrics. IGRP uses the authority-set or the default weightings to necessarily calculate optimal routes.IGRP supports ... Read More

MITM stands for a man-in-the-middle attack. It is a cyber-attack where an attacker transmits and probably alters the connection between two parties who consider they are communicating precisely. This enables the attacker to transmit communication, investigate, and even change what each party is saying.In MITM, it can define a type of cyberattack where an intruder covertly taps transmissions connecting two entities to check or develop traffic therebetween. Malicious ones can use MitM attacks to seize passwords or multiple sensitive data, snoop on the prey, disrupt links, or distort content.Types of MITMThe types of MITM are as follows −Rogue Access PointDevices ... Read More

MANET stands for Mobile Ad-Hoc Network. It is an infrastructure-less collection of mobile nodes that can arbitrarily change their geographic locations such that these networks have dynamic topologies which are composed of bandwidth-constrained wireless links.MANET nodes are supplied with wireless transmitters and receivers. At a given time based on the nodes positions and their transmitter and receiver coverage designs and transmission power levels, wireless connectivity in the structure of a random, multi-hop graph or ad-hoc web exists between the nodes. The current applications of MANETs are in defense services, emergency search, and rescue services, meetings, and conventions, and other scenarios ... Read More

IOT represents the Internet of Things. It is a network of physical objects or people known as "things" that are installed with applications, electronics, networks, and sensors that enable these objects to collect and exchange information. The objective of IOT is to extend to web connectivity from standard devices such as computers, mobile, tablets to associatively dumb devices like a toaster.Components of IOTThere are various components of IOT which are as follows −Sensors/DevicesSensors or devices are a component that supports us to collect live information from the surrounding environment. All this information can have several levels of complexities. It can ... Read More

It defines the procedure of providing security on network and network resources. It contains handling the security services on a resource by using access control, authentication, confidentiality, integrity, and non-repudiation. Computer network security includes measures taken by a business or various systems to monitor and avoid unauthorized access from external attackers.Network security is the security designed to preserve the integrity of the network from unauthorized connection and threats. The network administrators are responsible for adopting various defensive measures to guard their networks from possible security risks.Computer networks are connected in daily transactions and connections inside the government, private, or corporate ... Read More

ADC represents the Application delivery controller. It handles and directs the data flow among client connections and Web or enterprise software and can be used in the design of hardware devices or application programs.ADCs are generally related to application delivery networks (AND) where their goal is to implement simple tasks like what Web sites generally do to lessen the load from the Web servers.ADCs can also be discovered between a firewall and various software servers in a Web farm within a demilitarized zone (DMZ).The application delivery controller finds the crucial position of the cloud computing network. In addition to the ... Read More

Let us understand what Frequency-Division Multiplexing (FDMA) is.FDMAFrequency-Division Multiplexing is an analog method used when the channel’s bandwidth is higher than the consolidated bandwidths of the signals to be broadcasted.In FDMA, there are several frequencies that are combined into an individual combined signal and shared on the channel. At the receiver end, the reverse procedure is used to receive the single frequencies back for operating.The entire bandwidth of the channel is divided into logical channels, and each sending device is given with the possession of a logical channel.When the signal appears at the receiver in the composite architecture, it has ... Read More

There are various physical components of a computer network which are as follows −NICNIC represents Network Interface Cards. A personal computer development board linked to a PC or server and works with the network control structure to force the network’s data stream. There are many network documentations that call NIC a network board. In this manner, all NICs are connected to a network.HubA hub is a standard network point, also referred to as a network hub, to connect devices in a network. The hub has numerous ports. If a packet develops one port, it can be considered by all the ... Read More

Computer Network is a linkage of several computers to share an operating framework, hardware, and data through a transmission approach between them.Elements of Computer NetworkA computer network involves the following elements such as follows −Nodes (Workstations) − The multiple terminals connected to the network sharing the network resources are known as nodes.Server − It can assign a specific node as a central node at a well-known and permanent address to support the network. The node supporting the service is called server.Network Interface Unit − The interpreter which facilitates connecting the server and multiple nodes, is known as the Network Interface Unit. The network interface ... Read More