Cybersecurity Fundamentals Specialist Exam

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Question 33

Which is the PRIMARY reason why Modbus over Ethernet is easy to manage in a firewall?

Modbus uses a single master to communicate with multiple slaves using simple commands.

Modbus is a proprietary protocol that is widely supported by vendors.

Modbus uses explicit source and destination IP addresses and a single known TCP port.

Modbus has no known security vulnerabilities, so firewall rules are simple to implement.

Correct Answer: C

Modbus over Ethernet is easy to manage in a firewall because it uses explicit source and destination IP addresses and a single known TCP port. This simplifies the creation and management of firewall rules, as traffic can be easily identified and filtered based on these characteristics.

Discussion

Evan7557Option: C

Answer C