1. What is the primary purpose of form data validation in web applications?

Which of the following is a secure method for storing passwords in a database?

A). Hashing

B). Encryption

C). Salting

D). All of the above

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()

What security measure helps prevent form spamming by distinguishing between human users and bots?

A). CAPTCHA

B). HTTPS

C). CSRF Token

D). Two-Factor Authentication

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

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

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 NOT a common input validation technique for form data?

A). Regular Expressions

B). Whitelisting

C). Blacklisting

D). Tokenization

What does XSS stand for in the context of web security?

A). Cross-Site Scripting

B). XML Secure Socket

C). External Server Session

D). Cross-Site Sanitization

What is the purpose of using prepared statements when interacting with databases in PHP?

A). Preventing SQL Injection

B). Improving Performance

C). Encrypting Data

D). Enforcing Data Integrity

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