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ICT

200399jm Inglés 14 fichas

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1Describe a LAN and what it does.A LAN is the connections between the main components used within a local area netwrok.
2Decribe what a Server is.A server is at least one powerful computer to provide services for the network users.
3Explain what Back up storage is.Back up storage is where you have a copy of data incase anything happens to the first one, you can store is on a removable device such as a hard disk.
4Explain what a firewall is.A Firewall protects netwroks from intrution. All data traffic that passes through the firewall is checked using a set of rules to protect the network so that they can be shared.
5Decribe what a printer does.Printers can be black and white or any colour depending on the output required, and although they can be attatched to a single computer, in a organisation printers are likely to be connected via a network so they can be shared.
6Explain what Network Infrastructure is.Network Infrastructure is the hardware and software resources of an entire network that enable network connectivity, communication, operations and management of an enterprise network.
7Explain what a Netwrok Inetrface card (NIC) is.A Netwrok Interface card (NIC) has an Ethernet cable input and is fitted into a spare slot at the back of a computer to connect the motherboard.
8Describe what Hub is.A hub is a device for connecting many ethernet-cable-type devices, such as computers; it has several ports thast many devices are connected and the data recived is sent out again to all other devices connected to the hub.
9Explain what a switch is.A switch plays a similar role to a hub, but switched data transfer is more efficient than hub transfer as the data is transfered to the destination line output rather than every line.
10What is a Wi-Fi router?A wi-fi router acts as a wireless access point and provides netwrok access within the theatre for a range of wi-fi devices such as tablets or computers.
11What is a Touchscreen monitor?A touchscreen monitor is used for both output and input; to display information as well as to enable customers to make selections during transactions.
12Decribe a CPU.A CPU is used to control the kiosk; often this is based on a personal computer purchased from a major manufacturer.
13Describe what the printer at the kiosk is.A kiosk printer is used to print tickets and receipts.
14Describe what a barcode/QR code scanner is.Barcode scanners can be used to read special offer codes or the codes on tickets trhat have already been purchased