12th Computer Applications - Introduction to Hypertext Pre-Processor Two Marks Question | QB365

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12th Computer Applications - Introduction to Hypertext Pre-Processor Two Marks Question

Published on: 19/09/2019

Introduction to Hypertext Pre-Processor

Download Tamil Nadu 12th Standard Computer Applications question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Questions:

Generic 2

14 x 2 = 28

Write a Basic Rules for Variable Declaration

Write the type of PHP syntax are available?

What is the main advantage of PHP variable declaration?

Classification of Client Server Architecture Model

What is the purpose of Var_dump( ) function?

Define Webserver.

Define Client Server Architecture.

How to declare variables in PHP?

Is PHP a case sensitive language?

10.

What is URL?

11.

Give few examples of Web Browser?

12.

Difference between Client and Server?

13.

What is Webserver?

14.

What are the common usages of PHP?

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Answers Key:

Generic 2

14 x 2 = 28

a. Variable name must always begin with a $ symbol.
b. Variable name can never start with a number.
c. Variable names arecase-sensitive

Three types of PHP Syntax are available.
They are as follows
1. Default Syntax
2. Short open tags
3. HTML Script embed Tags

The main advantage of the PHP variable declaration is, it does not requires to specify the data type keyword separately such as int, char, float, double or string etc.

Client server Architecture is classified into three types, as follows
(i) Single Tier Architecture
(ii) Two Tier-Architecture
(iii) N/Mult/Three tire architecture.

(i) The var_dump( ) function is used to dump information about a variable.
(ii) This function displays structured information such as type and value of the given variable.

A server is a computer or a device that provides functionalities for other programs of devices called "Client".

A server is a computer or a device that provides functionality for other programs or devices, called "clients". This architecture is called the client server model, and a single overall computation is distributed across multiple processes or devices.

(i) Variable name must always begin with a $$$ symbol.
(ii) Variable name can not start with a number.
(iii) Variable names are case-sensitive. Eg. $$$a = 6;

(i) Yes, PHP is a case sensitive language both upper and lower case are treated differently.
(ii) Example: $x and $X are different variable names.

10.

Uniform Resource Locater (URL), refers the address of a specific web page or file on the internet.

11.

Google chrome, Firefox, Safari, Opera, Internet Explorer, Netscape Navigator etc.

12.

Client	Server
(i) A client machine is a small computer with a basic hardware configuration.	A server machine is a high-end computer with an advanced hardware configuration.
(ii) A client is a simple and less powerful machine.	A server is a powerful expensive machine.
(iii) A client is used for simple tasks.	A server is used for storing huge data files and applications.

13.

(i) Webserver is software which is running in server hardware.
(ii) It takes the responsibilities for compilation and execution of server side scripting languages.

14.

(i) PHP can be easily embed with HTML and other client side scripting language like CSS [cascading style sheets) and Java scripts.
(ii) It also creates dynamic and interactive webpages in the real time Web development projects.
(iii) It is competitor of ASP and JSP.
(iv) 78.9% of websites are developed by PHP.