1.3.4 web technologies

Question 1

What can be described as, ‘SQL operations that are performed remotely’?

Answer 1

• Server-side processing

Question 2

what is server-side processing

Answer 2

• refers to operations performed by server in a client-server relationship in computer network.
• Typically, a server is a computer program, such as a web server, that runs on a remote server, reachable from a user’s local computer.

Question 3

What is meant by term JavaScript?

Answer 3

• programming language that adds interactivity to a webpage + works alongside / can be embedded into HTML with

   tag. Also works with CSS. It runs in a web browser

Question 4

Explain why its usually the case that JavaScript is interpreted rather than compiled.

Answer 4

• Java is likely to be run on a variety of machines with different processors / architectures.
• Compiled code is machine dependent whereas interpreters run on high level code which is machine independent.

Question 5

Web sites are hosted on what?

Answer 5

web servers

Question 6

Scripts can be executed either on the what 2 sides using what processing? (server-side processing). This includes SQL, Python, C, or in the browser (client-side processing) using HTML, CSS and JavaScript. Code executing on the client computer will be quicker than sending data to a server for processing.

Answer 6

• either on host or server
• client side and server side

Question 7

what 3 main coding languages use client-side processing?

Answer 7

• HTML
  -CSS
  -JavaScript

Question 8

• which form of processing is faster to execute code, client side or server side processing?

Answer 8

Code executing on the client computer will be quicker than sending data to a server for processing.