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Gateway

                                                As the name implies, a gateway is a path that connects two networks that may
                                                use different networking models. They essentially serve as messengers, taking
                                                data from one system, interpreting it, and transferring it to another. Gateways,
              also known as protocol converters, can function at any layer of the network. Switches and routers are less complicated
              than gateways. A protocol converter is another name for a gateway.

              RJ-45


              A registered jack (RJ) is a physical network interface that is used to connect telecommunications
              or data devices. Both ends of Ethernet cables have RJ45 connections. As a result, an Ethernet
              cable  is  frequently  called  an  RJ45  cable.  Computers  are  frequently  connected  to  Ethernet
              networks using these wires.

                                    Wifi Card

                                    Wi-Fi cards are small, portable devices that connect your desktop or laptop computer to the
                                    internet over a wireless network. Radio waves are used to transmit Wi-Fi signals. The radio
                                    signals are transmitted by the antenna and picked up by Wi-Fi receivers such as PCs and cell
                                    phones with Wi-Fi cards. To receive the signals, these devices must be within the range of a
                                    Wi-Fi network. The signals are then read by the Wi-Fi card, which creates a wireless internet
                                    connection. Many contemporary laptops, mobile devices, and other electronic gadgets have
                                    wireless networking capabilities and do not require a Wi-Fi card.
              Modem


              A modulator-demodulator, or modem, is a hardware device that allows a computer to
              send and receive data through a phone or cable line. It converts data from a digital
              format into a format suitable for an analog transmission and vice versa.


                                                Lab Assignment ‘n Activity                       Experiential Learning




                     Tryout the following networking simulators:
                     •   Netsim (https://netsim.erinn.io/) is a simulator game with a focus on security that aims to teach you the
                       fundamentals of how computer networks work. By using the simulator, students may practise attacks
                       that actual hackers employ and see how they operate. Playing Netsim is totally free. Log in or create a
                       new account to get started!





















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