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Exam Cybersecurity Fundamentals Specialist All Questions

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Exam Cybersecurity Fundamentals Specialist topic 1 question 17 discussion

Actual exam question from ISA's Cybersecurity Fundamentals Specialist
Question #: 17
Topic #: 1
[All Cybersecurity Fundamentals Specialist Questions]

Why is OPC Classic considered firewall unfriendly?

  • A. OPC Classic uses DCOM, which dynamically assigns any port between 1024 and 65535.
  • B. OPC Classic is allowed to use only port 80.
  • C. OPC Classic works with control devices from different manufacturers.
  • D. OPC Classic is an obsolete communication standard.
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Suggested Answer: A 🗳️
by Evan7557 at Oct. 12, 2023, 9:58 a.m.

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Evan7557
1 year, 1 month ago
Answer A
upvoted 1 times
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