PHP Security

1.		Which of the following is a method to prevent file inclusion vulnerabilities in PHP?

Using SSL encryption

Disabling file inclusion functions

Storing files outside the web root directory

Storing files in plaintext

2.		What is a Remote Code Execution vulnerability?

A vulnerability that allows an attacker to execute arbitrary code on a system

A vulnerability that allows an attacker to include a file from a remote server

A vulnerability that allows an attacker to bypass authentication

A vulnerability that allows an attacker to delete files on a system

3.		What is the purpose of the ctype_digit() function in PHP?

To check if a variable is a number or a numeric string

To check if a variable is a string

To check if a variable is an array

To check if a variable is an object

4.		Which of the following is a method to prevent Remote Code Execution vulnerabilities in PHP?

Using SSL encryption

Restricting access to sensitive files

Using the extract() function

Input validation and sanitization

5.		What is the purpose of the md5() function in PHP?

To generate random numbers

To validate email addresses

To encrypt passwords

To convert special characters to HTML entities

6.		What is a file inclusion vulnerability?

A vulnerability that allows an attacker to execute arbitrary code on a system

A vulnerability that allows an attacker to include a file from a remote server

A vulnerability that allows an attacker to bypass authentication

A vulnerability that allows an attacker to delete files on a system

7.		What is the purpose of the password_hash() function in PHP?

To encrypt data before storing it in a database

To hash passwords before storing them in a database

To validate user input

To convert special characters to HTML entities

8.		What is the purpose of the filter_input() function in PHP?

To encrypt data

To validate user input

To remove HTML tags from a string

To regenerate the session ID

9.		What is the purpose of the htmlentities() function in PHP?

To convert special characters to HTML entities

To encrypt data before storing it in a database

To hash passwords before storing them in a database

To validate user input

10.		What is the purpose of the htmlspecialchars() function in PHP?

To encrypt passwords

To validate email addresses

To convert special characters to HTML entities

To generate random numbers