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Exam Cybersecurity Fundamentals Specialist All Questions

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Exam Cybersecurity Fundamentals Specialist topic 1 question 39 discussion

Actual exam question from ISA's Cybersecurity Fundamentals Specialist
Question #: 39
Topic #: 1
[All Cybersecurity Fundamentals Specialist Questions]

What does Layer 1 of the ISO/OSI protocol stack provide?

  • A. Data encryption, routing, and end-to-end connectivity
  • B. Framing, converting electrical signals to data, and error checking
  • C. The electrical and physical specifications of the data connection
  • D. User applications specific to network applications such as reading data registers in a PLC
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Suggested Answer: C 🗳️
by Evan7557 at Oct. 12, 2023, 10:26 a.m.

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Morax1100
4 days ago
Selected Answer: C
Layer 1 of the ISO/OSI model is the Physical Layer. It deals with the electrical, mechanical, and physical characteristics of the connection between devices.
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Evan7557
2 months, 1 week ago
Answer C
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