Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ICT Gcse Final revision > Connectivity > Flashcards

Connectivity Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route A flashcards GCSE Geography - AQA flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route B flashcards
1
Q

To create a home network what do you need to set up?

A

A local area network (LAN)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is Local Area Network (LAN)?

A

It connects all the computers in a the house so that resources can be shared.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are home networks mainly used for?

A

Allows users to share an internet connection.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Name 3 benefits of a home network?

A

Shares the internet connection
Sharing peripherals, for example printers
Internet telephone services

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Connecting to the internet from home requires what?

A

A router

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is a router?

A

The router connects all of the computers to the modem by giving an internal IP address.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a IP address?

A

Is used so the router knows where to send data.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does NIC stand for?

A

Network interface card

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does Network interface card do?

A

It is needed to connect the computers to the network unless you are using Wi-fi dongles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the two types of Networks?

A

1) Cable connection by router using Ethernet cable

2) Wireless connection to router using radio or microwaves.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Explain the difference in set up between a cable connection to router using Ethernet cable and Wireless connection to router using radio waves?

A

Cables have to be run from the router to all the rooms in the house whereas Wireless connection all you need is a wireless router.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Explain the difference in cost between a cable connection to router using Ethernet cable and Wireless connection to router using radio waves?

A

Installation is expensive for a cable connection whereas wireless connection is cheaper the only cost is the router.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Explain the difference in bandwidth between a cable connection to router using Ethernet cable and Wireless connection to router using radio waves?

A

For cable connection it is very fast, 1 gigabit per second (Gbps) and NICs are very cheap whereas for Wireless connection it is slower: 54 megabits per second

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Explain the difference in security between a cable connection to router using Ethernet cable and Wireless connection to router using radio waves?

A

For cable connection it is good security as you only need to plug the network into a computer with a cable whereas for wireless connection the security is poor as anyone in range can use the connection unless it is kept secure with a security password.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Explain the difference in interference between a cable connection to router using Ethernet cable and Wireless connection to router using radio waves?

A

For cable connection it the user should not experience interference whereas for wireless connection, the connection can be affected by walls and distance from router.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Explain the difference in mobility between a cable connection to router using Ethernet cable and Wireless connection to router using radio waves?

A

For cable connection you cannot connect in a room without socket whereas for a wireless connection you can access the network from anywhere in the house and stay connected moving from room to room.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Name another means of connection?

A

Powerline

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is a power-line network?

A

It uses existing power wiring as a framework to carry data.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Give two benefits of using a wireless network at home?

A

1) Cheaper as only cost is router

2) Can access the network from anywhere in the house

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

State what piece of equipment needs to be connected to a modem in order to share the connection over a wireless network.

A

A router.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Which is more secure a wireless network or cable connection?

A

A cable connection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

If you do not secure your network what can happen?

A

Anyone within range can access it.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

To secure your network what should you be advised to do?

A

People should be advised to change the default password on their router.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Name 4 ways to secure wireless networks?

A

1) change the default password on their router.
2) setting up a form of encryption
3) Turning off the router when not in use
4) Set up a Media access control (MAC) address filtering

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What is Encryption?

A

scrambles data so that only computers with the right key can read it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Name 3 commonest forms of protection for a wireless connection?

A

WEP
WPA-PSK
WPA2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What does setting up MAC address filtering mean?

A

Each device in your network has a MAC address. You can specify which addresses can connect to your wireless network.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Explain why it is important to secure a wireless network?

A

Wireless networks need to be secured otherwise other people can access your network and use your Internet connection or steal data.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Name 4 examples of how devices can connect or communicate?

A

1) Wifi
2) GSM - 4G
3) Bluetooth
4) Ethernet port

30
Q

Why are most mobile phones and laptops compatible?

A

Because they both have USB ports and can communicate via Wi-Fi or Bluetooth technology

31
Q

What does it mean if many devices are converging?

A

It means that performing functions that were originally performed by different devices

32
Q

What is a device that can perform several functions called?

A

A multi-functional device

33
Q

Jill wears a headset when driving so that she can make calls hands free. State two wireless communication networks that enable her to do this?

A

1) Bluetooth

2) 3G

34
Q

Jack is travelling through Europe and would like to upload images he has taken to online albums. He has a digital camera, a mobile phone and a netbook. List two ways in which he could transfer the images from his camera to his netbook.

A

1) Bluetooth

2) Insert SD card from camera into netbook

35
Q

Jack is in an area where there is no Wi-Fi signal. Describe how jack could upload the images from his netbook

A

If he sets his phone as a portable Wi-Fi hotspot, then the netbook can join this network and use the 3G network to access the Internet and upload images.

36
Q

What is measure of Capacity known as?

A

Bandwidth

37
Q

What is the measure of delay known as?

A

Latency

38
Q

What is Bandwidth?

A

is the number of bits that can go through the network connection in one second (measured in bits per second, bps).

39
Q

What does 1 Kbps mean?

A

1 thousand bits can be transmitted every second

40
Q

What does 1 Mbps mean

A

1 million bits can be transmitted every second

41
Q

What is Latency?

A

is the time in milliseconds between a bit leaving one device and arriving at the other. It is measured in milliseconds (ms).

42
Q

For streaming videos, you need a connection with what?

A

You need a connection with high bandwidth otherwise the video pauses as your computer waits for more bits to arrive.

43
Q

To get quick search results from Google what type of network connection do you need.

A

You need a low latency network connection so that information arrives quickly.

44
Q

The best networks including those suitable for gaming have what?

A

They have a high bandwidth and low latency.

45
Q

What does downloading lots of files at once do to data transfer.

A

It will slow down data transfer as the bandwidth is being shared by each download.

46
Q

Jed wants to watch BBC iplayer in HD on his computer. Explain why the bandwidth of Jed’s internet is important?

A

Bandwidth is the number of bits that can go through the network in one second. To stream HD video, Jed will need a high bandwidth, otherwise the video will keep pausing to wait for more bits to arrive.

47
Q

The most common ways of connecting to the internet on the move are what?

A

Wi-Fi and mobile broadband

48
Q

Wi-Fi devices need to be what?

A

Within range of hotspot

49
Q

Name 2 advantages of Wi-Fi?

A

1) Good range (works up to 60 meters from the hotspot)

2) Quiet widely avaliable

50
Q

Name 2 disadvabtages of Wi-Fi?

A

1) Hackers can sometimes set up fakr Wi-Fi hotspots putting users’ details at risk
2) Cannot use if not in range of an access point

51
Q

What does Mobile broadband allow?

A

It allows devices to connect to the internet via the same network that 3G mobile phones use.

52
Q

Name 2 advantages of Mobile broadband?

A

1) Far greater coverage than Wi-Fi

2) More secure than Wi-Fi- data is encrypted

53
Q

Name 2 disadvantages of Mobile broadband?

A

1) Lower bandwidth than Wi-Fi

2) You have to pay for mobile broadband, including roaming charges if you are abroad.

54
Q

Caroline is touring Europe and needs to use her laptop to access the internet to keep in touch with her family and to upload photos. Explain the benefits of using Wi- Fi rather than her 3G dongle?

A

Wi-Fi has a greater bandwidth than 3G and will be better for uploading photographs and using internet telephone services such as Skype. Wi-Fi hotspots are provided by many cafes and restaurants so she will be able to get a free internet connection rather than having to pay for her 3G connection.

55
Q

What is a Peer to peer network?

A

is when digital devices communicate wirelessly with each other directly without the need for a transmitter between them.

56
Q

What is WiFi direct?

A

WiFi direct allows devices to connect directly using WiFi without the need of an access point.

57
Q

Name two advantage of WiFi direct?

A

1) WiFi direct allows the user to set up peer to peer networks.
2) It also allows devices to use an access point for normal WiFi use.

58
Q

Name 2 advantages of Bluetooth

A

1) Allows devices to communicate automatically when within range with no user involvement.
2) Can connect up to eight devices at the same time.

59
Q

What is the difference between bandwidth between Bluetooth and WiFi Direct?

A

Bluetooth has a bandwidth of 25 mbps whereas WiFi direct has a Bandwidth of 250 mbps.

60
Q

What is the difference between Range between Bluetooth and WiFi Direct?

A

Bluetooth has a range of 60 meters whereas WiFi direct has a range of 200 meters.

61
Q

Some newspaper articles have claimed that WI-FI direct will replace Bluetooth in most digital devices. List two reasons why this could be the case.

A
  1. It has a much higher bandwidth-250 Mbps compared to 25 Mbps
  2. It has a greater range-200 metres compared to 60 metres
62
Q

Give two reasons why Bluetooth is not used to network devices in a large office?

A

Bluetooth has a lower range so the device being networked needs to be close together which would not be the case in a large office and also it has a low bandwidth and so data transfer would be slow.

63
Q

Explain why Bluetooth rather than traditional WiFi is used for communication between a mobile phone and a headset for hand-free calling?

A

Using Bluetooth, the two devices can communicate directly without the need for a transmitter, they can also communicate automatically without the need for any user actions.

64
Q

What are Protocols?

A

Protocols are rules that devices follow when they communicate with each other.

65
Q

What is a firewall?

A

It is a software that permits or blocks connections between your computer and other computers on the network according to the rules you have set.

66
Q

What is Malware?

A

Software that is designed to cause problems for user.

67
Q

What is Authentication?

A

The process of identifying an individual, can prevent illegal access.

68
Q

How can you prevent the risk of people accessing your computer and stealing your data?

A

When you leave computer on ‘Lock’ function in Windows so that a password is required to start using it again.

69
Q

List three physical controls that can be used to prevent unauthorised people from entering a computer network room.

A

Locks
CCTV
Security key pads

70
Q

Describe one biometric method that can be used to authenticate a person’s identity when they are trying to enter a building or log on to a computer system?

A

Fingerprint scanner that reads a person’s fingerprint and checks whether or not there is a computer account or file in the system for that fingerprint.

ICT Gcse Final revision (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions