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Free ISA/IEC 62443 Cybersecurity Fundamentals Specialist Practice Questions

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Exam style questions across every ISA-IEC-62443 domain

Last Update 4 days ago
Total Questions : 227

Start with our free ISA-IEC-62443 practice questions, carefully crafted to mirror the domains, phrasing, and difficulty of the real Cybersecurity exam. Each ISA-IEC-62443 exam question comes with a detailed rationale that explains not just which answer is correct but why the others fall short. That's how concepts stick. Use the free set to benchmark yourself: identify your ISA weak domains, see where you're losing marks, and build a focused study plan in minutes.

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Question # 51

Who is responsible for defining the tolerable residual cybersecurity risk as an input requirement for all activities?

Options:

A.  

Asset owner

B.  

Product supplier

C.  

Maintenance service provider

D.  

Integration service provider

Discussion 0
Question # 52

According to the scheme for cybersecurity profiles, which of the following is true about ISA/IEC 62443 security requirements when creating a security profile?

Options:

A.  

New security requirements can be added freely.

B.  

Only foundational requirements can be changed.

C.  

No new requirements are added and existing ones are not modified.

D.  

Existing security requirements can be modified to fit sector needs.

Discussion 0
Question # 53

What do the tiers in the NIST CSF represent?

Options:

A.  

Stages of incident response

B.  

Categories of cybersecurity threats

C.  

An organization's cybersecurity profile

D.  

Different types of cybersecurity software

Discussion 0
Question # 54

Which ISA/IEC 62443 part covers technical security requirements used by product suppliers, integration service providers, and asset owners?

Options:

A.  

ISA/IEC 62443-2-1

B.  

ISA/IEC 62443-2-4

C.  

ISA/IEC 62443-3-3

D.  

ISA/IEC 62443-4-2

Discussion 0
Question # 55

What is the name of the protocol that implements serial Modbus over Ethernet?

Available Choices (select all choices that are correct)

Options:

A.  

MODBUS/CIP

B.  

MODBUS/Ethernet

C.  

MODBUS/Plus

D.  

MODBUS/TCP

Discussion 0
Question # 56

As related to IACS Maintenance Service Providers, when do maintenance activities generally start?

Options:

A.  

During the design phase

B.  

At the beginning of the project

C.  

After the handover of the solution

D.  

Before the handover of the solution

Discussion 0
Question # 57

What is OPC?

Available Choices (select all choices that are correct)

Options:

A.  

An open standard protocol for real-time field bus communication between automation technology devices

B.  

An open standard protocol for the communication of real-time data between devices from different manufacturers

C.  

An open standard serial communications protocol widely used in industrial manufacturing environments

D.  

A vendor-specific proprietary protocol for the communication of real-time plant data between control devices

Discussion 0
Question # 58

What should the identification analysis of discovered vulnerabilities determine?

Options:

A.  

Root cause analysis

B.  

User interface improvements

C.  

The cost of patch development

D.  

Marketing strategy for the product

Discussion 0
Question # 59

Which of the following is the BEST example of detection-in-depth best practices?

Available Choices (select all choices that are correct)

Options:

A.  

Firewalls and unexpected protocols being used

B.  

IDS sensors deployed within multiple zones in the production environment

C.  

Role-based access control and unusual data transfer patterns

D.  

Role-based access control and VPNs

Discussion 0
Question # 60

Which of the following ISA-99 (IEC 62443) Reference Model levels is named correctly?

Options:

A.  

Level 1: Supervisory Control

B.  

Level 2: Quality Control

C.  

Level 3: Operations Management

D.  

Level 4: Process

Discussion 0

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