Networks - Hardware

Question 1

NIC

Answer 1

Network Interface Controller
Allows a device to connect to a network

Question 2

Switches

Answer 2

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

Question 3

Router

Answer 3

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

Question 4

Ethernet Cables

Answer 4

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

Question 5

Fibre Optic

Answer 5

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

Question 6

Coaxial cables

Answer 6

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

Question 7

How do wireless transmit data?

Answer 7

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

Question 8

Bluetooth (wireless)

Answer 8

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

Question 9

Wi-Fi (wireless)

Answer 9

Multiple connections to a LAN at the same time

Question 10

What do you need to set up Wi-Fi

Answer 10

Wireless Access Point (WAP)
like a wireless switch

Question 11

What do you need to connect to Wi-Fi?

Answer 11

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