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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

1. Which Security Level (SL) would be MOST appropriate for a system that requires protection against attackers with high motivation and extended resources using sophisticated means?

A) SL3
B) SL4
C) SL1
D) SL2

2. What port number is used by MODBUS TCP/IP for communication?

A) 80
B) 502
C) 443
D) 21

3. Which of the following BEST describes 'Vulnerability'?

A) The potential for violation of security
B) An event that could breach security
C) The result that occurs from a particular incident
D) An exploitable flaw in management

4. In the context of global frameworks, what does the acronym SDO stand for?

A) Security Development Organization
B) Software Development Organization
C) Systematic Development Organization
D) Standards Development Organization

5. Which is the PRIMARY responsibility of the network layer of the Open Systems Interconnection (OSI) model?
Available Choices (select all choices that are correct)

A) Gives transparent transfer of data between end users
B) Handles the physics of getting a message from one device to another
C) Forwards packets, including routing through intermediate routers
D) Provides the rules for framing, converting electrical signals to data

Solutions: