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 commonly used to check if a form field is empty?
A). empty()
B). isset()
C). is_empty()
D). is_null()
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 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 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 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 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 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
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
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