A computer has several modules, with possibly more than one instance of each.The system hardware consists of the following −KeyboardDisplayPrinterCPU BoardMemory BoardI/O BoardThe keyboard, display and printing devices need an interface so that it interacts with the system and the I/O board provides that interface for communication, that interacts is ... Read More

The operating system (OS) acts as a manager for all the I/O device, memory, CPU, file storage resources and allocates them to specific programs and users, whenever necessary to perform a particular task. Therefore, the operating system is the resource manager that means it can manage the resources of a ... Read More

A computer system consists of many resources like hardware and software, which are useful to complete a task. The common required resources are input/output devices, memory, file storage space, CPU etc.The operating system acts as a manager for all the above resources and allocates them to specific programs and users, ... Read More

Let us understand what an ultra-dense network is.Ultra-Dense NetworkThe dense networks deliver the best of the user experience to the users. This type of network allows the users to get the best result by the use of the densification. The density here can be the absolute or relative density in ... Read More

In the OSI (Open System Interconnection) model, the transport layer is one of the seven layers and it is responsible for the end to end communication between the sender and receiver over the internet. It provides logical communication between the sender and receiver and ensures the end to end delivery ... Read More

BGP stands for Border gateway protocol. It is used to exchange the routing information between the networks. It makes the internet work. It always selects the local path preference. Because of the below reasons it is choosing the path than the best path.- Firstly RIP (Routing Information Protocol) selects the ... Read More

The basic building blocks of the IPsec vpn tunnelling are as follows −Authentication header − it is used to verify the identity of the sender of the data and to check whether it is altered or not. It ties data in every data packet to a verifiable signature. It is ... Read More

The network troubleshooting tools are classified into two types −Hardware toolsThe hardware tools included in the network troubleshooting are explained below −Cable testerIt is also known as a media tester. It is used to test whether the cable works properly or not. The cable testers will confirm whether a cable ... Read More

4G cellular network is actually the fourth generation of cellular communications.Features of 4GIt comes up with many features which are given below −10x high speed as compared to 3GThe cost is also less for each bit used.It is highly secured too.It comes up with LTE i.e. Long term evaluation which ... Read More

Let us begin by learning about Virtual LAN (VLAN).Virtual LAN (VLAN)VLANs are logical grouping of devices which are in the same broadcast domain. Computers, servers, network devices are connected logically and their physical location don't matter. We use VLANs to manage traffic, to make the security improved.A VLAN is used ... Read More