Cert 4 Quiz Web

Welcome to your Cert 4 Quiz Web.

What does PHP stand for?

Personal Hypertext Processor

Preprocessed Hypertext Pages

PHP: Hypertext Preprocessor

Predefined Hypertext Parser

What is the difference between single quotes ('') and double quotes ("") in PHP?

Single quotes treat variables and escape sequences literally, while double quotes allow variable interpolation and interpret escape sequences.

Single quotes are used for HTML output, while double quotes are used for PHP output.

Single quotes are used for string concatenation, while double quotes are used for string interpolation.

Single quotes are preferred for performance reasons, while double quotes are preferred for readability.

How can you include one PHP file into another PHP file?

The "include_once" statement

The "require_once" statement

The "include" statement

All of the above

What is the difference between GET and POST methods in PHP?

GET method sends data in the URL, while POST method sends data in the request body.

GET method is more secure than POST method.

GET method is suitable for submitting sensitive information, while POST method is suitable for non-sensitive information.

GET method has a limitation on the amount of data that can be sent, while POST method does not have such limitations.

What is the purpose of the "echo" statement in PHP?

To assign a value to a variable.

To display output on the web page.

To define a function.

To import external libraries.

Which of the following is not a valid JavaScript data type?

String

Boolean

Float

Array

What is the purpose of the "typeof" operator in JavaScript?

It checks if a variable is null.

It determines the data type of a value.

It converts a value to a string.

It performs mathematical operations.

Which of the following is not a JavaScript loop statement?

for loop

while loop

do-while loop

if statement

What does the "===" operator do in JavaScript?

It performs strict equality comparison.

It assigns a value to a variable.

It concatenates two strings.

It declares a function.

What does the "defer" attribute do when included in a script tag?

Delays the loading and execution of the script until after the HTML document is parsed.

Specifies that the script should be executed immediately.

Defines a deferred function that can be called later.

Disables the script from running.

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