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

Which of the following is NOT a common input validation technique for form data?

A). Regular Expressions

B). Whitelisting

C). Blacklisting

D). Tokenization

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 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()

Which of the following is a best practice for preventing SQL Injection when executing SQL queries in PHP?

A). Use Parameterized Queries

B). Store Passwords in Plain Text

C). Use addslashes() Function

D). Disable Error Reporting

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 validate email addresses submitted through a form?

A). filter_var()

B). preg_match()

C). validate_email()

D). email_check()

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 security mechanism prevents Cross-Site Request Forgery (CSRF) attacks by generating and validating unique tokens for each form submission?

A). CSRF Token

B). Session Management

C). Secure Cookies

D). HTTPS

What is the purpose of input validation in web forms?

A). Ensuring Data Integrity

B). Enhancing User Experience

C). Preventing XSS Attacks

D). Enforcing Password Policies