Network Hardware

Question 1

What is a modem?

Answer 1

Transforms digital information into analogue signals to be transferred along a wire

Question 2

What is a router?

Answer 2

Routes data between devices on a LAN or WAN
A modem is connected to one port on the router

Question 3

What is a modem/router?

Answer 3

A piece of network hardware that spies on your family for the government.

But seriously its a modem and a router,,,, DUH

Question 4

Features of a twisted pair cable?

Answer 4

• Made up of a pair of insulated copper wires
• Can be affected by external magnetic fields
• provides low bandwidth
• Cheap
• Used for telephone networks, data networks and cable shielding

Question 5

Features of a coaxial cable?

Answer 5

• Made up of a conducting wire, a layer of insulation, a grounding conductor and a layer of exterior insulation
• less affected by magnetic interference then twisted pair
• Moderate bandwidth, more expensive than twisted pair only
• used for radio connections, cable TV, computer network connections and digital audio

Question 6

Features of a fiber optic cable?

Answer 6

• Very thin optical fibers bundled into a cable
• Unaffected by electromagnetic noise
• High bandwidth
• Most expensive
• Used for long distance connections between countries, data centers and organisations transmitting lots of data

Question 7

What is a network interface card?

Answer 7

Allows a computer to connect to a network

Question 8

What is a wireless access point (WAP)?

Answer 8

Allows devices to wirelessly connect to a network via an ethernet cable

Question 9

What is a hub?

Answer 9

Allows you to connect multiple devices to one network by broadcasting transmissions it receives to other devices, can lead to a network becoming flooded with traffic as it is a passive device

Question 10

What is a switch?

Answer 10

Allows you to connect multiple devices to one network, but is an active device so only sends messages where they need to go