LO4 - LO6

Question 1

What type of wired internet connection is copper cable?

Answer 1

Copper cables are a cheaper type of wired internet connection.

Question 2

What are the disadvantages of copper cables?

Answer 2

Poor insulation
Quite slow
Lower bandwidth than fibre optic cables

Question 3

What are the advantages of copper cables?

Answer 3

Easier to bend
Less likely to break than fibre optic cables

Question 4

What is a key characteristic of fibre optic cables?

Answer 4

Fibre optic cables are a very fast but expensive type of wired internet connection.

Question 5

How are signals transmitted in fibre optic cables?

Answer 5

Signals are transmitted as waves of light through a glass rod.

Question 6

What are the advantages of fibre optic cables over copper cables?

Answer 6

Suffer less from attenuation
Higher bandwidth

Question 7

What is Bluetooth used for?

Answer 7

Temporary short-range communication between two ‘paired’ devices within about 10 metres.

Question 8

What is a disadvantage of infrared networks?

Answer 8

Infrared networks require devices to be in direct line of sight.

Question 9

What is a key advantage of infrared communication?

Answer 9

No other hardware is required for a connection.

Question 10

What is a disadvantage of microwave connections?

Answer 10

Microwave connections are affected by bad weather which leads to weak connections

Question 11

What type of communication does GSM support?

Answer 11

allows mobile phones to connect to a network for calls and text messages.

Question 12

How do satellite networks function?

Answer 12

Satellite networks use point-to-multipoint communication via satellites that receive a transmission and rebroadcast them back to Earth.

Question 13

What is one limitation of laser connections?

Answer 13

Bad weather severely affects the transmission rate.

Question 14

What are the advancements in mobile technology classified by?

Answer 14

Generations such as 4G and 5G.

Question 15

Fill in the blank: Copper cables are more likely to suffer from _______.

Answer 15

attenuation

Question 16

True or False: Fibre optic cables are more fragile than copper cables.

Answer 16

True

Question 17

List one advantage and one disadvantage of Bluetooth.

Answer 17

Advantage: Short-range communication
Disadvantage: Limited range (about 10 metres)

Question 18

List one advantage and one disadvantage of Infrared.

Answer 18

Advantage: No other hardware required
Disadvantage: Requires direct line of sight

Question 19

List one advantage and one disadvantage of Microwave connections.

Answer 19

Advantage: Can transmit a large amount of data
Disadvantage: Affected by bad weather

Question 20

List one advantage and one disadvantage of Laser connections.

Answer 20

• Advantage: Can transmit data over long distances
• Disadvantage: Bad weather affects transmission

Question 21

List one advantage and one disadvantage of Satellite connections.

Answer 21

Advantage: Can cover vast areas
Disadvantage: Delay due to distance

Question 22

What does 5G technology allow for compared to previous generations?

Answer 22

Faster, more secure connections and new opportunities.

Question 23

What is the primary function of a modem?

Answer 23

Converts digital signals from a device into analog signals

Question 24

How does a switch differ from a hub in handling network traffic?

Answer 24

A switch sends data only to the right device whereas a hub sends data to all devices

Question 25

What is the role of a router in a home network

Answer 25

Shares internet connection with all your devices and lets them communicate with each other

Question 26

Explain how a switch improves network efficiency compared to a hub

Answer 26

A switch is faster because it sends data only where it’s needed not to all devices like a hub

Question 27

Can a single device act as a modem, router and switch? Give an example

Answer 27

Yes most home WiFi boxes from internet providers do all three jobs in one device

Question 28

What is a wireless access point?

Answer 28

Provides a link between wireless and wired networks

Question 29

Describe what is meant by combined device, give one advantage and one disadvantage

Answer 29

Hardware units that perform the functions of a multiple network in one Advantage- easy to set up, save space Disadvantage- if device breaks you lose all functions

Question 30

Name 3 trouble shooting tools and what their function

Answer 30

Event viewer - lists detailed information about an error Power on self test - checks memory, power and cooling systems Ping test - helps to see if something is online and how fast the connection is