Advance Nteroking part-2

By Rahul RahulspotPertner

 --------------------------------------Networking Device-------------------------------------------------------------------

1. NIC- It is a Network Interface Card & NIC is a hardware component used to connect a computer or other device to a network. It is also referred to as an Ethernet card Network adapter, Network interface, controller (NIC) or LAN adapter. It's set-up to your PC Motherboard.

2. REPEATER- It is a Incoming Generator (150m or more). A Repeater is an Electronic device implement in Computer networks to expand the coverage area of the Network.

3. HUB- HUB use to transmit the signal to each port to respond from which the was recived. Hub is operated on physical layer. In this packet filtering is not available. It is of two types: Active Hub, Passive Hub. HUB called Central Device . It's use for small Network Ex: School,College,University.

                        Also Hub are not inteligent in communication and processing information for 2nd and 3rd layer.

4. SWITCH- Is a Inteligent Device. A network switch connects devices within a network (often a local area network, or LAN*) and forwards data packets to and from those devices. Unlike a router, a switch only sends data to the single device it is intended for (which may be another switch, a router, or a user's computer), not to networks of multiple devices.

5. GATEWAY-  It Not a Device. A gateway is a network node used in telecommunications that connects two networks with different transmission protocols together. Gateways serve as an entry and exit point for a network as all data must pass through or communicate with the gateway prior to being routed. In most IP-based networks, the only traffic that does not go through at least one gateway is traffic flowing among nodes on the same local area network (LAN) segment. The term default gateway or network gateway may also be used to describe the same concept.

6. ROUTER- Home input Device, Sharing Device. A router is a device that connects two or more packet-switched networks or subnetworks. It serves two primary functions: managing traffic between these networks by forwarding data packets to their intended IP addresses, and allowing multiple devices to use the same Internet connection.

7. MODEM- Modem is Analog to Digital Device. A modem is a computer hardware device that converts data from a digital format into a format suitable for an analog transmission medium such as telephone or radio by modulating one or more carrier wave signals to encode digital information, while the receiver demodulates the signal to recreate the original digital information.

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