Week 7 - Dynamic Web Content

Question 1

Describe what a Dynamic web page is?

Answer 1

• Pages that contain content that change automatically.

* Shopping websites where users upload their products e.g. Amazon, ebay.

Question 2

How is a Dynamic web page created?

Answer 2

• Some kind of processing performed by the server or client’s machine.

Question 3

What are the 2 types of scripting for Dynamic web pages?

Answer 3

• Server-side scripting

* Client-side scripting

Question 4

Describe what Server-side scripting is?

Answer 4

• Page requests are fulfilled by running a script directly on the web server to generate dynamic HTML page.

Question 5

What are 4 Server-side scripting technologies?

Answer 5

• php
• ASP.Net
• Python
• JSP

Question 6

Describe how php technology is used for Server-side scripting?

Answer 6

• Script is embedded into page along with HTML and run.
• Created by Rasmus Lerdorf in 1995.
• Open source, cross-platform & free.
• Only parses code within tags.

Question 7

Describe how ASP.Net (active server pages) technology is used for Server-side scripting?

Answer 7

• Microsoft technology enables dynamic web pages using VB script of C#.
• Server executes when lifts page off disk.

Question 8

Describe how JSP technology is used for Server-side scripting?

Answer 8

• Serperates page logic from static elements to help HTML be more functional.
• Is an extension to Java servlet.

Question 9

Describe how Python technology is used for Server-side scripting?

Answer 9

• Interpreted high-level programming language for general purpose programming.
• Requires a web framework such as Django, Flask.

Question 10

What CGI as a Server-side application?

Answer 10

• Common Gateway Interface defines a standard interface between Web server & independent application.

Question 11

How does CGI work?

Answer 11

• Has to launch application independently for each request.

* No convenient place to store state info between web requests.

Question 12

Name 5 Server-side applications?

Answer 12

• CGI
• Perl
• Java
• C++
• C

Question 13

State 4 problems with running separate applications for the Server-side?

Answer 13

• Start & stop application.
• Passing data from client to application.
• Passing data from application to client.
• Status & error reporting.

Question 14

Describe what Client-side scripting is?

Answer 14

• Programs run in browser on clients machine.
• Small programs in form of interrupted language are embedded into web page.
• Browser has built-in interpreter which reads script code & runs it.

Question 15

Describe what a plug-in is used for?

Answer 15

• Add-on software which permits software developers to add new capabilities to browser.
• Ability to add new type of data instead of running separate application.
• Is javascript based.

Question 16

What are Rich Internet Applications & Progressive Web Applications?

Answer 16

• RIA & PWA have functionality of desktop applications.

* Typically transfer processing to web client & keep data on application server or cloud.

Question 17

Give an example of PWA’s & how they are used?

Answer 17

• Google docs stores data on the cloud, but can be downloaded onto client-server.