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Eccouncil Exam ICS-SCADA Topic 2 Question 23 Discussion

Actual exam question for Eccouncil's ICS-SCADA exam
Question #: 23
Topic #: 2
[All ICS-SCADA Questions]

Which of the following is the stance on risk that by default allows traffic with a default permit approach?

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Suggested Answer: D

Modbus TCP is a variant of the Modbus family of simple, networked protocols aimed at industrial automation applications. Unlike the original Modbus protocol, which runs over serial links, Modbus TCP runs over TCP/IP networks.

Port 502 is the standard TCP port used for Modbus TCP communications. This port is designated for Modbus messages encapsulated in a TCP/IP wrapper, facilitating communication between Modbus devices and management systems over an IP network.

Knowing the correct port number is crucial for network configuration, security settings, and troubleshooting communications within a Modbus-enabled ICS/SCADA environment.

Reference

Modbus Organization, 'MODBUS Application Protocol Specification V1.1b3'.

'Modbus TCP/IP -- A Comprehensive Network protocol,' by Schneider Electric.


by Nguyet at Jan 13, 2025, 09:18 PM

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Youlanda
17 days ago
I'm feeling a little 'Permissive' today, if you know what I mean. Time to let it all hang out!
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Annett
19 days ago
Ah, 'Prudent' - the only responsible choice. Gotta protect that network, you know?
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Launa
24 days ago
Clearly the 'Paranoid' approach is the way to go. Better safe than sorry, I always say.
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Wilford
2 months ago
But doesn't a default permit approach suggest a more permissive stance on risk?
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Lanie
2 months ago
I disagree, I believe the correct answer is A) Paranoid.
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Wilford
2 months ago
I think the answer is D) Permissive.
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Ruthann
2 months ago
Hmm, 'Permissive' seems like the way to go. If it's good enough for my teenager, it's good enough for me!
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Veronika
16 days ago
I prefer 'Paranoid' to be extra cautious.
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Basilia
17 days ago
I would go with 'Prudent' to be safe.
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Zona
19 days ago
I agree, it's the most relaxed stance on risk.
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Carolynn
20 days ago
I think 'Prudent' might be a safer option.
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Stephaine
30 days ago
I think 'Permissive' is the right choice.
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Lon
1 months ago
I agree, 'Permissive' is the way to go.
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Jules
2 months ago
I think the default permit approach sounds like a bit of a gamble. Might as well roll the dice with 'Promiscuous'!
upvoted 0 times
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