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 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()
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
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
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
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 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 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 validate email addresses submitted through a form?
A). filter_var()
B). preg_match()
C). validate_email()
D). email_check()