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CAS-005 · Question #288

CAS-005 Question #288: Real Exam Question with Answer & Explanation

The correct answer is A: Ladder logic. Programmable Logic Controllers (PLCs) in Operational Technology (OT) environments commonly use Ladder Logic, a graphical programming language resembling electrical relay logic diagrams. It's the most relevant for PLCs due to its widespread use in industrial automation.

Submitted by jian89· Mar 6, 2026Security Engineering

Question

An organization is researching the automation capabilities for systems within an OT network. A security analyst wants to assist with creating secure coding practices and would like to learn about the programming languages used on the PLCs. Which of the following programming languages is the most relevant for PLCs?

Options

  • ALadder logic
  • BRust
  • CC
  • DPython
  • EJava

Explanation

Programmable Logic Controllers (PLCs) in Operational Technology (OT) environments commonly use Ladder Logic, a graphical programming language resembling electrical relay logic diagrams. It's the most relevant for PLCs due to its widespread use in industrial automation.

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