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Computer Science > Internet Technologies > Flashcards

Internet Technologies Flashcards

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1
Q

Define internet (2)

A

worldwide collection of connected networks

uses TCP and IP

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2
Q

Define the world wide web (2)

A

collection of websites/webpages

uses internet to get info from web servers

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3
Q

What are HTTP(S) protocols written in

A

HTML

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4
Q

Define a web browser (3)

A

software

interprets HTML sent from websites

then produces results on screen

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5
Q

What does HTML stand for

A

hypertext mark-up language

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6
Q

What does URL stand for

A

uniform resource locator

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7
Q

Define a URL

A

text address to access websites

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8
Q

Format of URL

A

protocol://website address/path/file name

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9
Q

What is the protocol for URL (2)

A

http

https

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10
Q

What does the website address contain (4)

A

domain host

domain name

domain type

country code

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11
Q

Example of domain host

A

www

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12
Q

Define domain name

A

website name

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13
Q

Example of domain type (2)

A

.com

.net

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14
Q

Example of country code

A

.uk

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15
Q

Define the file name in a URL

A

item on web page

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16
Q

Define the path in a URL

A

webpage

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17
Q

What does HTTP stand for

A

hypertext transfer protocol

18
Q

Define HTTP(s)

A

set of rules to be obeyed when transferring files across internet

19
Q

Functions of web browsers (4)

A

bookmark websites

store user history

store cookies

allowing use of multiple tabs

20
Q

Define a cookie (2)

A

small files on user computer

small table containing (keys, data) values

21
Q

Name the 2 types of cookies

A

session cookie

persistent (permanent cookie)

22
Q

How cookies work on websites (2)

A

website checks if browser has set cookies before

if does browser reads cookie on user preferences

23
Q

Function of cookies (4)

A

track user preferences

save personal details

hold items in online shopping cart

store login details

24
Q

Features of session cookies (4)

A

stored in temporary memory

doesn’t collect info from user

doesn’t identify user

doesn’t exist once browser/website closed

25
Q

Features of persistent (permanent) cookies (3)

A

remember user’s log in details

stored on hard drive of user computer until expiration date/deleted

still exists even if browser closed

26
Q

Benefits of persistent (permanent) cookies

A

no need to type login details when visiting website

27
Q

What does SSL stand for

A

secure socket layer

28
Q

Features of SSL (3)

A

type of protocol

transmits data securely

computer rules to communicate across network

29
Q

How to tell if SSL is being used (3)

A

protocol ends in s (https)

padlock icon

colour of address bar changes

30
Q

How SSL works (5)

A

browser sends message to connect with website

browser requests web server to identify itself

web server sends SSL certificate copy to browser

web browser authenticates certificate

sends message to server to allow communication

31
Q

Name the 3 parts of loading a webpage (3)

A

Request

Send

Receive

32
Q

How is a webpage requested (2)

A

user enters URL in address bar

browser asks DNS server for website IP address

33
Q

How is a webpage sent (2)

A

DNS finds URL

sends IP address to user computer

34
Q

How is a webpage received (5)

A

computer communicates with website server

required pages downloaded

web server sends HTML files to computer

browser interprets HTML

website displayed on screen

35
Q

What does an HTML contain (2)

A

structure

presentation

36
Q

What is an HTML’s presentation

A

style of document

format of webpage

37
Q

Example of HTML structure (3)

A

head

body

table

38
Q

Example of HTML presentation (3)

A

colour

font size

font style

39
Q

Company that provides a user with a
connection to the Internet

A

ISP (Internet Service Provider)

40
Q

Protocol that is used to send data for web
pages across the Internet

A

HTTP(S)

41
Q

Function of HTML

A

developing web pages

Computer Science (15 decks)

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