Server side and client side processing

Question 1

What is server side processing

Answer 1

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

Question 2

Common server side processing languages

Answer 2

SQL or PHP

Question 3

Why is server side processing useful

Answer 3

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

Question 4

What is client side processing

Answer 4

when a client processes the data on a local device. This means
that all of the information is processed on the client computer

Question 5

Why is client side processing useful

Answer 5

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

Question 6

Where does client side processing take place

Answer 6

Web browsers

Question 7

Where does server side processing take place

Answer 7

on the
webserver. Data is sent from the browser
to the server, the server processes it and
sends the output back to the browser

Question 8

What does client side processing not require

Answer 8

Data to be sent back and forth meaning code is much more responsive

Question 9

Is code visible or invisible with client side processing

Answer 9

Code is visible which means it can be
copied

Question 10

What does server side processing take away

Answer 10

the
reliance of the browser having the correct
interpreter

Question 11

Is code invisible or visible to the user with server side processing

Answer 11

It hides the code from the user,
protecting copyright and avoiding it being
amended/circumvented

Question 12

Disadvantage of server side processing

Answer 12

Server side
processing puts extra load on the server.
This is at the cost of the company hosting
the website

Question 13

When is client side processing best used

Answer 13

Client side processing is best used when
it’s not critical code that runs or where a quick response is needed

Question 14

When is server side processing best used

Answer 14

Server side processing is best used where
it is integral that processing is carried out.
It is often used for generating content or accessing secure data

Question 15

What are the Get and Post requests?

Answer 15

The two main types of HTTP request. Get requests are supposed to be harmless and repeatable and can be bookmarked. Post requests are for when a change is meant occur (e.g. create, update or destroy operations).

Question 16

What is the URL (Uniform Resource Locator)?

Answer 16

A text string that represents a destination for a HTTP (or other protocol) request.

Question 17

How does javascript allow dynamic web pages

Answer 17

Modern JavaScript can execute HTTP requests without the need to reload the page. This makes it possible to create dynamic web applications

Question 18

Uses of server side processing on the web

Answer 18

Accessing a database
Security and authentication
Search engines
Cloud services
Hosting APIs (see later slides)

Question 19

Uses of server side processing elsewhere

Answer 19

Traditional file storage (e.g. a NAS)
Infrastructure (for LANs and WANs)
Virtual machines for thin clients

Question 20

Advantages of server side processing

Answer 20

Can access secure data and control what the client sees.
Should be far more secure against code manipulation.
The server is probably more powerful than the client so can potentially tackle heavy workloads in less time.

Question 21

Uses of Client side on web side?

Answer 21

Interactivity without page reloads
Validation rules
Animations, games, etc.
Responsive design
Any ‘offline’ abilities