Certified Ethical Hacker 312-50v10 – Question054

Firewalls are the software or hardware systems that are able to control and monitor the traffic coming in and out the target network based on pre-defined set of rules.
Which of the following types of firewalls can protect against SQL injection attacks?

Data-driven firewall
B. Stateful firewall
C. Packet firewall
D. Web application firewall

Correct Answer: D