Which PHP function is commonly used to check if a form field is empty?
A). empty()
B). isset()
C). is_empty()
D). is_null()
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 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 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 is a common security vulnerability associated with form data submission?
A). SQL Injection
B). Form Spamming
C). Broken Authentication
D). Clickjacking
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
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 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 is a secure method for storing passwords in a database?
A). Hashing
B). Encryption
C). Salting
D). All of the above