2.4.1 Web Applications

Question 1

Difference between WWW and internet

Answer 1

Internet- worldwide communication system using satellites and telecoms links to connect computer hardware in a global network.

Web- information often in HTML format stored on computers connected to the net.
A software system using HTTP and other protocols to access information stored on internet hardware.

Question 2

IP address

Answer 2

Unique octet of 4 digits each range 0-255 used to address each device connected to the internet.

Used to address packets transferred online
Can be static or permanent.

Question 3

Web browser

Answer 3

SW used to request and display web pages stored on the internet. Translates HTML of each page into visual content on a screen.
Many features tabs favourites search bar

Question 4

FTP

Answer 4

File transfer protocol
Set of rules used to allow devices connected to the internet to send/ receive files. No size limit. Uses error checking to make sure file correctly received.

Question 5

ISP

Answer 5

Internet service provider
Provides access to customers to ISPs direct connection to internet’s infrastructure.

Offers many services like different transmission speeds email address web hosting web filtering etc.

Question 6

C+c role played by cookies in way user typically browses WWW

Answer 6

Both ways to store data locally on a computer related to web browsing.
Both improve users browsing experience.

Cache does not sore personal information just images section of HTML that will make the site load faster on next visit.
Cookies on the other hand store preferences previous activity that are personal to a user in order to improve advertising.

Question 7

Web page

Answer 7

HTML file usually forms part of a website. Stored on a web server to allow transfer of HTML content to other web browsers.

Question 8

Difference between portal and search engine

Answer 8

Search engine ONLY contains functions relation to searching for web pages.

Portal will offer this service as well as being an entry point to other connected services like email and selected news stories that are tailored to suit a logged in user.

Question 9

Https

Answer 9

Protocol

Question 10

Www

Answer 10

World Wide Web

Question 11

Dominican college. Org

Answer 11

Second level domain

Question 12

.uk

Answer 12

Top or country domain

Question 13

/whatever

Answer 13

Specific page requested

Question 14

Role of ITU

Answer 14

UN agency, set and promote standards for telecoms

Manufacturers will make sure their products follow these standards so the public can be confident that devices/ new technologies like internet of things will work.

Try to bridge digital divide by making internet connectivity more accessible for more people in developing countries.

Question 15

CC intranet and WWW

Answer 15

Both contain html web pages downloaded via http
Both excessive by web browsers.

Www all web pages in internet connected devices like web servers,
Accessible by any internet connected device

Intranet= single website
Accessible only by users of a network.

Question 16

How an organisation could make use of an intranet

Answer 16

Online noticeboard for company information for internal use like canteen menus
Job promotions time tables.

Used to host a communication system so users can electronically message each other.

Can host service so users can collaborate on production of files and documents.

Could allow for online forms to be filled in