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Network Concepts Devices

Network Concepts Devices. Introduction into Network Devices. Aims. Gain a knowledge about network devices. Discuss what network devices are required to create a basic network Draw a bespoke network drawing using Visio. Network Devices.

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Network Concepts Devices

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  1. Network ConceptsDevices Introduction into Network Devices HNC COMPUTING - Network Concepts

  2. Aims Gain a knowledge about network devices. Discuss what network devices are required to create a basic network Draw a bespoke network drawing using Visio HNC COMPUTING - Network Concepts

  3. Network Devices In order to setup a network a variety of devices are required. The network devices differ according to what network you intend to setup. A network segment is a portion of a computer network where every device communicates using the same physical layer. HNC COMPUTING - Network Concepts

  4. Basic Network A simple network can be created between two computers (peer to peer). In order to create this connection each computer must have an NIC network interface card. A Network card, Network Adapter, LAN Adapter or NIC (network interface card) is a piece of computer hardware designed to allow computers to communicate over a computer network. 4 HNC COMPUTING - Network Concepts

  5. Workstations

  6. File Servers

  7. Network Interface Cards

  8. Basic Network An NIC provides physical access to a networking medium and provides a low-level addressing system through the use of MAC (Media Access Control) addresses. It allows users to connect to each other either by using cables or wirelessly.

  9. Modems

  10. Wireless Access Point

  11. Other Network Devices There are a variety of different network devices that are available, each of which has a specific role within the network. Some of which are listed below: Switch Hub Router Bridge Gateway Repeaters 11 HNC COMPUTING - Network Concepts

  12. Other Network Devices Switches A networkswitch is a device that connects network segments. A switch is intelligent, it can recognise what cable has been inserted into it and adapt to allow the network to communicate. 12 HNC COMPUTING - Network Concepts

  13. Switches

  14. Other Network Devices Hubs A network hub is a device for connecting multiple devices together, making them act as a single network segment. 14 HNC COMPUTING - Network Concepts

  15. Other Network Devices What is the difference between a Hub and a Switch? A hub receives a packet at one of its ports from a PC on the network, it transmits the packet to all of its ports (broadcast) thus, to all of the other PCs on the network. A hub does not use any intelligence to determine the destination of a packet, whereas a switch does. 15 HNC COMPUTING - Network Concepts

  16. Routers

  17. Other Network Devices Router This is a device that forwards and routes data packets along networks. A router is often included as part of a network switch. A router is located where one network meets another. It prevents the traffic on one from unnecessarily spilling over to the other. This process is known as routing. 17 HNC COMPUTING - Network Concepts

  18. Other Networks 18 HNC COMPUTING - Network Concepts

  19. Other Network Devices Bridge A bridge is a device that connects two networks so that they act as if they’re one network. A key feature of a bridge is to enable a large network to be partition into two smaller, more efficient networks. Bridges work best in networks that are highly segregated. 19 HNC COMPUTING - Network Concepts

  20. Other Network Devices Gateway The main job of a gateway is to convert protocols among communications networks. A gateway can accept a packet formatted for one protocol (e.g. AppleTalk) and convert it to a packet formatted for another protocol (e.g. TCP/IP) before forwarding it. A gateway can be implemented in hardware, software or both, but they are usually implemented by software installed within a router. 20 HNC COMPUTING - Network Concepts

  21. Conclusion Gained knowledge about network devices Discuss what network devices are required to setup a network Create a bespoke network diagram in Visio HNC COMPUTING - Network Concepts

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