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Computer networks: LAN, WAN, devices and topologies
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- 1What is a computer network?A computer network is defined to be more than one computer connected or it can be wireless it doesn't have to be physically connected.
- 2Describe a LANIt is a few devices connected in a small area.
- 3Describe a WANIt is a few or more wirless devices
- 4What are the advantages of a computer network?LAN has several benefits such as expensive laser printers
- 5What are the disadvantages of a computer network?Lower price devices
- 6What devices are needed to produce a LAN?Network interface card.
router.
Wireless access point .
Hub/switch. - 7What is the purpose of a NIC?A network interface card (NIC) is a circuit board or card that is installed in a computer so that it can be connected to a network.
- 8What is the purpose of a Router?Wireless routers allow multiple computers and other devices, such as smartphones and tablets, to join the same network.
- 9What is the purpose of a Hub?When referring to a network, a hub is the most basic networking device that connects multiple computers or other network devices together.
- 10What is the purpose of a Switch?he basic function that any switch is supposed to perform is to receive information from any source connected to it and dispatch that information to the appropriate destination only.
- 11What is the purpose of a WAP?In computer networking, a wireless access point (WAP), or more generally just access point (AP), is a networking hardware device that allows a Wi-Fi device to connect to a wired network
- 12What is the difference between a Hub and a switch?A network switch (also called switching hub, bridging hub, officially MAC bridge) is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.
- 13What are the three different network topologies?The bus,ring and star.
- 14What are the advantages / disadvantages of a Star topology?It is very reliable – if one cable or device fails then all the others will continue to work
it is fast and efficient as no data collisions can occur
it is expensive to install as this type of network uses the most cable (network cable is expensive)
extra hardware is - 15What are the advantages / disadvantages of a Ring topology?Speed: Fast. Data transfers quickly, even if there are a large number of devices connected because the data only flows in one. Unreliable: If one computer goes down, it affects all others on the ring.
- 16What are the advantages / disadvantages of a Bus topology?Easy installation
Cheap. Single cable.
Easy to add/remove devices
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- Fichas sobre Sin título, creado por Ali Rehman el 12/10/2018.
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- Ali Rehman
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