Networks - Hardware Flashcards

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1
Q

NIC

A

Network Interface Controller
Allows a device to connect to a network

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2
Q

Switches

A

Connect devices on a LAN
Receive data in frames from one device and transmit this to the device on the network with the correct MAC address

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3
Q

Router

A

Transmit data between networks (at least connected to 2 different networks)
Direct data (in packets) to their destination

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4
Q

Ethernet Cables

A

Can be used to connect devices to a LAN
Twisted pair of cables (four pairs of copper wires twisted together to reduce interference)
e.g. CAT 5E , CAT 6

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5
Q

Fibre Optic

A

Transmit data as light
No interference -> good for large distances
High performance

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6
Q

Coaxial cables

A

Single copper wire
With plastic insulation + metallic mesh -> shielding fro outside interference

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7
Q

How do wireless transmit data?

A

Radio waves
Convenient -> can move around
Cheaper -> less wires
e.g. Bluetooth , Wi-Fi

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8
Q

Bluetooth (wireless)

A

Direct connection between 2 devices on a LAN
Connection range: 10m
Bandwidth: Low
Used in: mobile/ wearable devices-> smartphones, headphones, watches

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9
Q

Wi-Fi (wireless)

A

Multiple connections to a LAN at the same time

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10
Q

What do you need to set up Wi-Fi

A

Wireless Access Point (WAP)
like a wireless switch

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11
Q

What do you need to connect to Wi-Fi?

A

Wireless NIC
Normally built - in, if not you can use a USB/HDMI dongle

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