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ISA/IEC 62443 Cybersecurity Fundamentals Specialist Sample Questions:

1. Which is an important difference between IT systems and IACS?
Available Choices (select all choices that are correct)

A) The IACS security priority is integrity.
B) The IT security priority is availability.
C) Routers are not used in IACS networks.
D) IACS cybersecurity must address safety issues.

2. Which layer in the Open Systems Interconnection (OSI) model would include the use of the File Transfer Protocol (FTP)?
Available Choices (select all choices that are correct)

A) Application layer
B) Session layer
C) Data link layer
D) Transport layer

3. What do packet filter firewalls examine?
Available Choices (select all choices that are correct)

A) The relationships between packets in a session
B) Every incoming packet up to the application layer
C) Only the source, destination, and ports in the header of each packet
D) The packet structure and sequence

4. Which is a role of the application layer?
Available Choices (select all choices that are correct)

A) Delivers and formats information, possibly with encryption and security
B) Includes protocols specific to network applications such as email, file transfer, and reading data registers in a PLC
C) Provides the mechanism for opening, closing, and managing a session between end-user application processes
D) Includes user applications specific to network applications such as email, file transfer, and reading data registers in a PLC

5. In which layer is the physical address assigned?
Available Choices (select all choices that are correct)

A) Layer 2
B) Layer 7
C) Layer 3
D) Layer 1

Solutions: