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  1. Home
  2. ISA Certification
  3. ISA-IEC-62443 Exam
  4. ISA.ISA-IEC-62443.v2026-10-28.q147 Dumps
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Question 101

A multinational corporation needs to implement a cybersecurity framework that can be adapted across different countries and industries while allowing continuous improvement. Which feature of the NIST CSF makes it suitable for this purpose?

Correct Answer: B
The NIST Cybersecurity Framework (CSF) is explicitly designed to be flexible, voluntary, and sector- agnostic, making it suitable for diverse environments - including multinational corporations operating in multiple regulatory jurisdictions.
"The Framework is intended to be used by organizations of all sizes, across all sectors and countries. It is technology-neutral and allows for continuous improvement through its tiered implementation and feedback loop."
- NIST Cybersecurity Framework v1.1, Section 1.2 - Framework Overview
This flexibility allows organizations to tailor their implementation to fit their risk appetite, regulatory requirements, and industry practices.
References:
NIST CSF v1.1 - Section 1.2
ISA/IEC 62443-2-1 - Cross-reference in aligning with adaptable frameworks like NIST CSF
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Question 102

Which standard is applied during the Assess phase for risk assessment?

Correct Answer: C
ISA/IEC 62443-3-2 specifically describes the methodology for conducting risk assessments within industrial automation and control systems (IACS). This part of the standard provides guidance on identifying risks, assigning Security Levels, and making design decisions during the Assess phase of the IACS Cybersecurity Lifecycle.
Reference: ISA/IEC 62443-3-2:2020, Section 4 ("Cybersecurity risk assessment for system design").
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Question 103

Which service does an Intrusion Detection System (IDS) provide?

Correct Answer: D
An Intrusion Detection System (IDS) is a passive monitoring tool that detects unauthorized or malicious activity in networked systems. It does not block traffic (like an IPS), but rather alerts administrators to potential breaches.
"An IDS monitors network or system activities for malicious actions or policy violations and produces alerts or logs for analysis."
- ISA/IEC 62443-3-3:2013, SR 3.2 - Detection of Security Events
It's a core component of security monitoring and response - often paired with an Incident Response Plan (IRP) as defined in ISA/IEC 62443-2-1.
Clarification of Options:
Option A is metaphorical and not technically accurate.
Option B is false; IDS does not protect against all vulnerabilities.
Option C is incorrect; IDS does not block, only detects.
Option D is correct - it detects unauthorized access or misuse.
References:
ISA/IEC 62443-3-3:2013 - SR 3.2
ISA/IEC 62443-2-1:2010 - SP Element 7: Incident Response
NIST SP 800-94 - Guide to Intrusion Detection Systems
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Question 104

How should CSMS organizational responsibilities or training be handled over time?

Correct Answer: B
ISA/IEC 62443-2-1 emphasizes the importance of the ongoing evaluation of organizational responsibilities and training as part of continuous improvement within the CSMS. Periodic assessment ensures that personnel remain aware of their roles, are adequately trained, and that the program adapts to changes in the environment, technology, or threat landscape. The standard discourages keeping responsibilities static or expanding without control; instead, it advocates for regular reviews and updates.
Reference: ISA/IEC 62443-2-1:2009, Section 5.4.3 ("Training and awareness") and 6.2.4 ("Periodic review and evaluation").
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Question 105

At Layer 4 of the Open Systems Interconnection (OSI) model, what identifies the application that will handle a
packet inside a host?
Available Choices (select all choices that are correct)

Correct Answer: B
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