16. Which of the following is NOT a common security vulnerability associated with file uploads in web applications?

Which PHP function is commonly used to validate email addresses submitted through a form?

A). filter_var()

B). preg_match()

C). validate_email()

D). email_check()

Which HTTP header instructs web browsers to limit the scope of cookies to a specific domain?

A). SameSite

B). Cache-Control

C). Access-Control-Allow-Origin

D). Content-Security-Policy

Which of the following HTTP methods is considered safe and idempotent, making it suitable for form submissions?

A). POST

B). GET

C). PUT

D). DELETE

What is the purpose of using HTTPS (HTTP Secure) in web applications?

A). Encrypting Data

B). Authenticating Users

C). Preventing XSS Attacks

D). Optimizing Page Load Speed

Which PHP function is used to generate a random CSRF token for form submissions?

A). bin2hex()

B). uniqid()

C). md5()

D). openssl_random_pseudo_bytes()

Which of the following is a common security vulnerability associated with form data submission?

A). SQL Injection

B). Form Spamming

C). Broken Authentication

D). Clickjacking

What is the purpose of session management in web applications?

A). Maintaining User State

B). Encrypting Data

C). Preventing SQL Injection

D). Validating Form Data

Which PHP function is commonly used to sanitize input data from a form to prevent SQL injection?

A). mysqli_real_escape_string()

B). htmlspecialchars()

C). filter_var()

D). htmlentities()

Which PHP function is commonly used to sanitize input data from a form to prevent XSS attacks?

A). htmlspecialchars()

B). htmlentities()

C). strip_tags()

D). filter_var()

Which PHP function is commonly used to check if a form field is empty?

A). empty()

B). isset()

C). is_empty()

D). is_null()