Mostly in the digital age, an enterprise Software-defined Wide Area Network (SD-WAN) can modernise your network and propel your business, while a single centralised SD-WAN can unify network connectivity and allow application delivery to be coordinated across an entire network.A WAN is a link separated by a significant distance between ... Read More

Wide area network (WAN) is a telecommunication network that spreads over a large area of computer networking. A WAN network connects different small LAN and MAN networks.A well-known example of a WAN network is the Internet. It covers cities, states, countries and even continents. It can be a public network ... Read More

Transmission Control Protocol/Internet Protocol (TCP/IP) are two different communication protocols. TCP defines the communication in a network and how to send data in the form of packets. IP manages how to make the route for packets to make sure it reaches its defined destination. Before data is sent its IP ... Read More

Transmission Control Protocol/Internet Protocol (TCP/IP) are two different communication protocols. TCP splits a message to packets which were transmitted across the internet whereas the IP is accountable to address of every packet hence a chance to forward the exact destination.Previously, there was no TCP/IP and no method for the computers ... Read More

Firewall in general is defined as a wall between personal computer and outside world. So it will filter the traffic coming from the outside world based on the user configuration like which sites are trusted sites and which we need to allow.Example of firewall system design is shown below −Components ... Read More

Firewall is a wall between a personal computer and the outside world. So it will filter the traffic coming from the outside world based on the user configuration like which sites are trusted sites and which we need to allow.The diagram given below depicts the firewall:Functions of firewallThe functions of ... Read More

Router architecture is designed in a way that the routers are equipped to perform two main functions. These functions are as follows:Process routable protocols.Use routing protocols to determine the best path.Let us try to understand the router with the help of architecture:Architecture of RouterGiven below is a diagram which explains ... Read More

The basic communication model in computer networking is where the Sender (encodes the message) channel sends a message over a channel or medium and receiver (decodes the message) gives Feedback.ComponentsThe components involved in the successful implementation of the basic communication model are as follows −Sender − Who sends the message.Encodes ... Read More

Network security is protection of the access to files and directories in a computer network against hacking, misuse, and unauthorized change to the system.Importance of network securityThe importance of network security is explained below −Confidentiality − Confidentiality is probably the common aspect of information security. We need to protect our ... Read More

A virtual local area network (virtual LAN) is the logical grouping of network nodes.In other words, a virtual LAN is any broadcast domain that is partitioned and isolated in a network. A VLAN allows several networks to work virtually as one LAN.It gives an advantage to connect multiple devices whether ... Read More