Internets And Intranets Flashcards Preview

GCSE ICT > Internets And Intranets > Flashcards

Flashcards in Internets And Intranets Deck (28)
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1
Q

What is the internet?

A

A group of interconnected networks that does not contain information but provides transport links for information to pass between computers.

2
Q

What is the World Wide Web?

A

An application that runs on the internet and contains webpages written using Hypertext Markup Language.

3
Q

What does URL stand for?

A

Uniform Resource Locator

4
Q

What does HTTP stand for?

A

Hypertext Transfer Protocol

5
Q

What is ‘www.’?

A

The name of the host server

6
Q

What is ‘.com’?

A

The domain name

7
Q

What is ‘.uk’?

A

The country code

8
Q

How do we access the World Wide Web?

A

Via browsers

9
Q

What is an intranet?

A

A private network used within an organisation that is inaccessible to the public.
It can be used to share resources and communicate via email.

10
Q

How are intranets protected against access from unauthorised users?

A

Using firewalls

11
Q

What does ISP stand for?

A

Internet Service Provider

12
Q

List four services that an ISP offers.

A
  1. Variety of bandwidth options
  2. Email service
  3. Security package
  4. Online and phone support
13
Q

List three requirements to use the internet.

A
  1. Internet browser software
  2. A telecommunications link (e.g. ADSL)
  3. A modem
14
Q

Define the term bandwidth.

A

The rate of data transmission, measured in binary digits per second (bit/s)

15
Q

The higher the bandwidth…

A

the quicker data flows along the line

16
Q

List two things a higher bandwidth does.

A
  1. Loads pages faster

2. Downloads large files faster

17
Q

What does ADSL stand for?

A

Asymmetric Digital Subscriber Line

18
Q

What does ADSL provide?

A

Broadband

19
Q

How does ADSL transmit data?

A

Via copper cables

20
Q

ADSL is permanently switched on, which means that there is no need for what?

A

Dial-up

21
Q

ADSL has how much bandwidth?

A

Up to 20 Mbps

22
Q

How does ADSL compare to fibre optic in terms of price?

A

It is cheaper

23
Q

What are ADSL and fibre optic both?

A

Data transfer technologies

24
Q

What kind of cabling does fibre optic use?

A

Cabling made of glass fibres

25
Q

How is data sent through fibre optic cables?

A

Data is sent as pulses of light

26
Q

Fibre optic has how much bandwidth?

A

Extremely high bandwidth

27
Q

What is fibre optic immune to?

A

Interference

28
Q

How is the cost of fibre optic described?

A

Expensive