Introduction to SQL Injection Quiz Answers 1. Which of the following is a potential impact of SQL injection attacks? A. Unauthorized access to sensitive data B. Data encryption C. Improved application speed D. User authentication enhancement Answer: Unauthorized access to sensitive data (A) SQL injection attacks can lead to unauthorized access to sensitive data. 2. Which input fields are commonly exploited in SQL injection attacks? A. Email subscription forms B. Feedback forms C. Image upload fields D. Usernames and passwords Answer: Usernames and passwords (D) Usernames, passwords, search boxes, and other forms are common attack vectors. 3. What is one effective technique for detecting SQL injection attacks? A. Changing database passwords frequently B. Utilizing security tools like WAFs C. Enabling verbose logging D. Increasing server response time Answer: Utilizing security tools like WAFs (B) Using security tools like Web Application Firewalls (WAFs) helps monitor for malicious patterns. 4. Which strategy should be consistently used to mitigate SQL injection risks? A. Avoiding input validation altogether B. Relying solely on user feedback C. Storing all data in text files D. Using parameterized queries consistently Answer: Using parameterized queries consistently (D) Consistently using parameterized queries can help prevent SQL injection attacks. 5. What role do regular reviews of security logs play in database security? A. They eliminate the need for database backups. B. They are only beneficial for user experience improvements. C. They provide insight into potential vulnerabilities. D. They slow down system performance. Answer: They provide insight into potential vulnerabilities. (C) Regularly reviewing security logs helps identify potential vulnerabilities and threats. 6. What is the primary goal of SQL injection attacks? A. To improve database performance B. To recover lost data from the database C. To perform routine database maintenance D. To manipulate database queries for unauthorized access Answer: To manipulate database queries for unauthorized access (D) SQL injection aims to manipulate database queries, often leading to unauthorized data access. 7. Which type of SQL injection allows attackers to infer database schema by analyzing responses? A. Direct SQL injection B. Inferential SQL injection C. Out-of-band SQL injection D. In-band SQL injection Answer: Inferential SQL injection (B) Inferential SQL injection involves inferring database details from application responses. 8. How do parameterized queries help in preventing SQL injection? A. They eliminate the need for database credentials B. They treat user input as data, not as part of the SQL command C. They allow attackers to use any data format D. They only accept numeric user input Answer: They treat user input as data, not as part of the SQL command (B) Parameterized queries separate user data from SQL commands, thwarting SQL injection. 9. Which option is NOT a method for preventing SQL injection? A. Input Validation B. Regular updates to applications C. Storing data in plain text D. Use of parameterized queries Answer: Storing data in plain text (C) Storing data in plain text is a security risk and does not prevent SQL injection. 10. What is one of the main risks associated with SQL injection attacks? A. Automatic database backups B. Improved application performance C. Enhanced user experience D. Unauthorized access to sensitive data Answer: Unauthorized access to sensitive data (D) SQL injection can lead to unauthorized access and data breaches. 11. What character sequence is often used in SQL injection attacks to bypass authentication? A. ' OR '1'='1 B. ' SELECT * FROM products; -C. '; DROP TABLE users; -D. ' AND '2'='2 Answer: ' OR '1'='1 (A) The sequence `' OR '1'='1` is commonly used to bypass authentication checks. 12. Which prevention technique uses the least amount of database privileges? A. Least Privilege Principle B. Input Validation C. Web Application Firewalls D. Stored Procedures Answer: Least Privilege Principle (A) The Least Privilege Principle ensures that database accounts have only necessary permissions. 13. What type of SQL injection is less common due to detection measures? A. In-band SQL injection B. Out-of-band SQL injection C. Direct SQL injection D. Inferential SQL injection Answer: Out-of-band SQL injection (B) Out-of-band SQL injection is harder to detect and less commonly exploited.