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Computer Science > 5.1 - The Internet & the WWW > Flashcards

5.1 - The Internet & the WWW Flashcards

1
Q

What is the internet? [1]

A

a global network of computer

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2
Q

What is the world wide web? [2]

A

a collection of webpages which is accessed via the internet. It’s a service built on top of the internet.

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3
Q

What is a URL? [1]

A

They are text addressses used to access websites

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4
Q

What does URL stand for? [1]

A

Uniform resource locator

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5
Q

What does uniform mean? [1]

A

because the format is consistent

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6
Q

What does resource mean? [1]

A

a web page, pdf, picture, etc

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7
Q

What does locator mean? [1]

A

finder

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8
Q

What is the protocol? [1]

A

http or https

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9
Q

What is the website address? [4]

A
  1. domain host (www)
  2. domain name (website name)
  3. domain type (.com, .org)
  4. country code (.uk, .np)
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10
Q

What is the path? [1]

A

web page (the roots)

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11
Q

What is the file name? [1]

A

item on the web page

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12
Q

What does HTTP stand for? [4]

A

Hyper Text Transfer Protocol

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13
Q

What does HTTPS stand for? [5]

A

Hyper Text Transfer Protocol Secured

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14
Q

What is HTTP used for? [2]

A

used for viewing webpages on the internet

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15
Q

What happens in HTTP to your information? [2]

A

Any information exchanged between your computer and that web server is transferred over the public internet.

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16
Q

What does HTTPS do? [2]

A

encrypts the data retrieved by HTTP

17
Q

What does HTTPS make sure happens to the data? [2]

A

It makes the data impossible to read by encrypting it as the data is being shared over the internet

18
Q

How is the secure HTTP shown? [1]

A

Padlock symbol added to the address bar

19
Q

What encryption does HTTPS use to secure data transmission? [2]

A

SSL / TLS

20
Q

What are 5 functions of a web browser? [5]

A
  • store web pages as bookmarks
  • history of websites
  • allow many web pages to be opened at the same time using ‘tabs’
  • make use of cookies
  • provide address bar
21
Q

What are cookies? [1]

A

Small data stored on a user’s computer

22
Q

What doe cookies allow? [1]

A

User tracking and maintain user preferences

23
Q

What are the two types of cookies? [2]

A

Session cookies & Persistent cookies

24
Q

What are session cookies used for? [5]

A
  • used while making online purchases
  • keep user’s items in a virtual shopping cart
  • stored on temporary memory location on computer
  • doesn’t store or collect personal information
  • ceases to exist once the browser is closed
25
Q

What are persistent cookies used for? [3]

A
  • logs in user details
  • stored on the hard drive permanently
  • they stay even after the browser is closed

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