Brainscape's Knowledge GenomeTM

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


See full index

ICT > connectivity COMPLETE > Flashcards

connectivity COMPLETE Flashcards

1
Q

what do you use a home network for?

A

to share an internet connection at home

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

whats a local area network?

A

LAN conects all the computers in a house so that all resources can be shared

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

whare are the benefits of using a LAN?

A 
sharing files ad backing them up
sharing intenret commection
share peripherls(printers)
internet telephone services
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what do you need to set up a local area network?

A

a network interface card NIC to cnnect the comuters to the network unless you are usng wifi dongles

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

whats a router and what does it do?

A

connects all the computers to the modem by giving them a internal Ip adress so that it knows where to send the data. most internet service providers will give you a modem and a router combined

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

what are the advantages of a cable connection internet router?

A

very fast
good security as the user needs to hysically plug the computer into the network with a cable
no/little interference

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

what are the disadvantages of using a cabled conection to a router/ interent?

A

cables have to be run froem router to all rooms in the house
installiation is expensive
you need a socket to connect in each room and have to unplug to reconnect if you want to move rooms

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

what are the advantages of using wireless/wifi connection to an internet router?

A

no cables/all you need is the router
cheaper
you can acess the network anywhere

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

what are the disadvantages of usinf wireless/wifi connection to an internet router/

A

slower
poor security as anyone within a range can use it unless kept secure with a passcode
can have interfrence throught wa;;s and euiptment and distace form router affect it

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

what are the three menas of connection with home networks?

A

powerline
cable
wireless

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

what happens if you do not secure your wireless network?

A

any one within a range can acess it

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

whats the importance of netwrok security?

A

others can acess your connestion and use it at your cost

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

now can you secure your wirelss netwrok?

A 
passwords
encryption
media acess controll adress filtering
hide the router broadcasting its SSID service set identifyer
turn off when not in use
reduceing transmitter power
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

whats encryption?

A

scrambling 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
15
Q

what are common forms of encryption?

A

WEP
WPA-PSK
WPA2

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

how can you not secure your network? common misconceptions?

A

your firewall or phsically locking the door wil not prevnt people acessing wifi

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

how can devices connect and communicate?

A 
wifi
bluetooth
mini usb port
GSM-4G
firewall port
ethernet port
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

how do the two decives actually connect?

A

if they both have on eof the ways of connecting.communcating eg.usbport/wifi
they thay will be ableto connect via that given way

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

how does converging of devices and multifuctional devices help with communication between the devices?

A

they can perform may tasks so it skips out steps that single fuction devices may have to partake in

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

if you are using a headset whilst driving to make hands free calls, what two wireless commoniction methods allow this?

A

bluetooth

3G

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

what deos a ntewok communciation involve?

A

transfering bits (ones and zeros) between two devices

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

what is network performance?

A

how well the network can transfer bits

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

define bandwidth

A

Capacity

the number of bits that can go thought the connectin in 1 second its measure in BPS(bits per second)

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

define latency

A

delay

the time in milliseconds between a bit eaving one device and arriving at the other

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

for streaming vidoes what would a user want their experience to be like?

A

high bandwidth otherwise the vidoe would kepp on pausing as the computer waits for more bits to arrive

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

for searching the internet what user experience would want?

A

low latency as the information needs to arrive quckly

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

what can slow down data trasfer?

A

downloading lots of files at once but not using other programs or file such as word or media player at once wont slow it down

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

what are the most common ways of connecting to the internet?

A

Wifi hotspots, mobile broadband 3g

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

what are the advantages of wifi?

A

Good range, fast, widely available

30
Q

what are the disadvantages of wifi?

A

Hackers can fake hotspots and risk users,

cannot use if not in range

31
Q

what is mobile broadband?

A

Allows a device to connect to the internet.

Its built into phones but laptops need a dongle

32
Q

what are the advantages of mobile broadband?

A

Greater coverage,

more secure

33
Q

what are the disadvantages of mobile broadband?

A

You have to pay for it when abroad (roaming),
limited downloads,
lower bandwidth than Wi-Fi

34
Q

what is a peer-to-peer network?

A

Allows digital devices to communicate wirelessly and directly without the need for a transmitter

35
Q

in the past how did devices connect?

A

Through a transmitter, a wireless aces point when using wifi and a mobile phone mast when using broadband

36
Q

What is wifi direct?

A

Allows devices to connect directly without the need for a wireless access point

37
Q

what are the advantages of wifi direct?

A

Allows users to set up peer to peer networks. Allows devices to use an access point for normal Wi-Fi use.

38
Q

What are the advantages of using Bluetooth peer-to-peer?

A

Devices communicate automatically when in range. Can connect 8 devices at once. Does not interfere with other devices

39
Q

Why is Bluetooth used rather than wifi to communicatebetween a headset and mobile phone for hands free calling?

A

it allows them to communicate without the use of a transmitter. Its also automatic

40
Q

Why is Bluetooth not used in a large office

A

it has a lower range so the device being connected need to be close together which is hard in a large office.. data transfer would be slow due to low bandwidth

41
Q

What’s a protocol?

A

A rule you have to flow when communicating with devices

42
Q

What does VoIP stand for?

A

Voice over internet protocol

43
Q

what does VoIP do?

A

The set of rules for transmitting audio messages over the internet. It allows free voice calls and video calls

44
Q

what are POP3, IMAP and SMTP?

A

Communication protocols used when sending and receiving emails

45
Q

what’s the difference between po3 and imap?

A

Pop takes the email form the serve and delivers it to the recipients computer whereas IMAP keeps the email on the server

46
Q

server

define simple mail transfer protocol

A

SMPT is when the email is sent form the senders email client (outlook) to the senders email server and when the email is delivered to the recipient email server

47
Q

what is pop3?

A

Post office protocol is used to read emails and download it to the computer. The email is deleted off the server and can be read offline

48
Q

what is IMAP?

A

Internet message access protocol. The email is read on the server. The email is not deleted off the server and can be accessed anywhere using a computer with an internet connection.

49
Q

What are the communication protocols used to surf the internet?

A

HTTP and HTTPS

50
Q

What is HTTP and how does it work?

A

Hypertext transfer protocol. It is the protocol of the world wide web WWW. Your browser used HTTP to ask the web server to send the files needed to show the webpage on your computer

51
Q

What is HTTPS and how does it work?

A

This is for confidential information ( hypertext transfer protocol over SSL secure sockets lock). The data transferred is encrypted so it cannot be read by anyone else

52
Q

What is a digital certificate and how do you view one?

A

Double lick the padlock next to the web address. It is issued to certify the identity of the website your browser is communicating with. These certificated can be faked

53
Q

How does HTTPS work? the stages?

A
  1. The browser checks the sits certificate.
  2. The web server and browser determine the encryption type to understand each other.
  3. The browser and web server send each other unique codes to use when encrypting the information.
  4. The browser and web serve start talking to each other using the encryption
54
Q

How does encryption help keep data secure?

A

It turns data into a secret code using a key so that only someone with the key can read the data

55
Q

What is remote access?

A

When you connect to a computer it is visible to all other computers on the network. It is visible to other around the world

56
Q

How can you prevent remote access?

A

A firewall permits or blocks connections between your computer and others on the network according to rules you have set.

57
Q

What’s a virus?

A

A program designed to make other programs malfunction or stop working. They can replicate and be passed on to other users in files and emails

58
Q

What precautions can you take to avoid viruses?

A

Use antivirus software. Run scans of files. Use trusted websites. Only open attachments form trusted senders. Scan usb/cd/dvds before accessing them. Do not use pirate copies of cd/dvds. Avoid file sharing websites

59
Q

What does it mean to intercept data?

A

Fraud users can intercept data and read it to commit crimes

60
Q

How can you stop data interception?

A

Encrypt it

61
Q

define authentication

A

identifying an individual to prevent illegal access to data

62
Q

what does a strong password consist of?

A

Numbers, upper and lower case, punctuation

63
Q

how can you stop illegal access?

A

Authentication, passwords, captcha tests

64
Q

what is a captcha test?

A

It ensures the user is human

65
Q

how can you physically stop access to data?

A

Lock function, chains , RFDI

66
Q

how can you use locks/chains to secure computers?

A

It fixes the computer to a desk it keeps the equipment safe

67
Q

what is RFDI?

A

Radio frequency identification chips can be attached to items and a scanner reads the chip to identify the product. It sounds alarms in shops if taken out.

68
Q

How is biometrics used in security?

A

A fingerprint scanner to identify a person based on physical chacteristics

69
Q

How to physically prevent unauthorised users accessing data?

A

Fit doors with keypads/locks. Burglar alarms. CCTV. Authorisation of people. Swipe card, blinds, biometrics

70
Q

What does CCTV stand for?

A

What does CCTV stand for?

ICT (6 decks)

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