Web Technologies

Question 1

What does HTML stand for?

Answer 1

HyperText Markup Language

Question 2

Define HTML

Answer 2

The language/script that web pages are written in. It allows a browser to interpret and render a webpage for the viewer by describing the structure and order of the web page.

Question 3

What does CSS stand for?

Answer 3

Cascading Style Sheets

Question 4

Define CSS

Answer 4

A language used to describe the style of a web page. It can be used to specify the way HTML elements look.

Question 5

Explain internal vs external CSS

Answer 5

Internal CSS is placed inside the style tags, and entired directly into the HTML document.

External CSS is written in a separate document and a link to this style sheet is added to the HTML document.

Question 6

What is a search engine?

Answer 6

A program that searches through a database of internet addresses looking for resources based on criteria set by the client.

Question 7

Search engines rely on an index of web pages. How is this index built?

Answer 7

Web crawlers build the index, by collecting information about websites.

Question 8

How do web crawlers work?

Answer 8

They collect keywords and phrases from linked web pages, and add this information to the index. They also collect meta data from websites (info specified by website owner)

Question 9

What does the page rank algorithm do?

Answer 9

It ranks web pages, determining the order in which web pages are displayed when a search is conducted. Higher ranked pages show up first.

Question 10

What are the two factors that determine the page rank of a page?

Answer 10

• Number of incoming links it has from other web pages
• Page rank of the web pages that link it.

Question 11

What is server side processing?

Answer 11

When a client sends data to a server for it to be processed. This means no info is processed on the client computer.

Question 12

What are common server side scripting languages?

Answer 12

SQL or PHP

Question 13

Why is server side processing useful?

Answer 13

• Does not require plugins
• Can perform large calculations faster than clients
• Not browser dependent
• More secure

Question 14

What is client side processing?

Answer 14

When a client processes the data on a local device, meaning all information is processed on the client computer.

Question 15

What language is used in client side scripting?

Answer 15

JavaScript

Question 16

What is client side useful for?

Answer 16

• Webpage can immediately respond to user actions
• Executes quickly
• Gives developers more control over the behaviour and look of the website.