Which of the following is NOT a common input validation technique for form data?
A). Regular Expressions
B). Whitelisting
C). Blacklisting
D). Tokenization
What is the primary purpose of form data validation in web applications?
A). Enhancing user experience
B). Preventing security vulnerabilities
C). Optimizing server performance
D). Improving search engine ranking
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 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
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 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 security vulnerability associated with file uploads in web applications?
A). File Inclusion
B). File Upload Vulnerability
C). Path Traversal
D). Cross-Site Request Forgery
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 HTTP methods is considered safe and idempotent, making it suitable for form submissions?
A). POST
B). GET
C). PUT
D). DELETE
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