Future Business Leaders of America (FBLA) Cybersecurity Practice Test

What is the purpose of a triple-homed firewall?

1. To connect multiple internal networks

2. To provide a public interface, a DMZ, and an intranet

3. To encrypt all outgoing and incoming traffic

4. To filter email traffic only

The correct answer is: To provide a public interface, a DMZ, and an intranet

The purpose of a triple-homed firewall is to provide a public interface, a demilitarized zone (DMZ), and an intranet. This configuration effectively segments the network into three distinct areas. The public interface is connected to the internet, allowing external communications, while the DMZ serves as a buffer zone, hosting services such as web servers or mail servers that need to be accessible from the outside but still require a level of protection from external threats. The intranet represents the internal network, which is more secure and contains sensitive information that should not be exposed directly to the internet. By utilizing a triple-homed firewall, organizations can implement specific security policies that govern the traffic between these different zones, enhancing overall security posture. Each interface manages traffic according to its security needs, ensuring that external threats have limited access and reducing the risk of compromising internal networks.