Which tool is commonly used to monitor network security in maritime operations?

Firewalls are crucial in monitoring network security, especially in maritime operations where secure communication and data transfer are vital. They act as a barrier between an internal network and potential external threats, filtering incoming and outgoing traffic based on predetermined security rules. This protection is essential in preventing unauthorized access to sensitive information and ensuring that maritime operations can maintain the integrity of their communication systems.

In the context of maritime operations, where various digital systems are integrated for navigation, cargo management, and operational control, firewalls help secure these systems from cybersecurity threats. By monitoring traffic and blocking potentially harmful data packets, firewalls contribute to the overall cybersecurity posture of marine operations.

In contrast, while the other tools listed play important roles in maritime safety, they do not relate directly to monitoring network security. Traffic cones are used for physical traffic management, radios facilitate communication, and navigation charts assist with route planning. None of these tools provide the cybersecurity protection that firewalls do, making firewalls the correct choice for monitoring network security in this context.