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ISA-IEC-62443 Exam Dumps - ISA/IEC 62443 Cybersecurity Fundamentals Specialist

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Question # 65

What does Foundational Requirement 6 (FR 6) - Timely Response to Events (TRE) require?

A.

Control access to information

B.

Protect against unauthorized operation

C.

Notify the proper authority about security violations

D.

Ensure adequate responses to network resource requests

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Question # 66

Which is the PRIMARY reason why Modbus over Ethernet is easy to manaqe in a firewall?

Available Choices (select all choices that are correct)

A.

Modbus uses a single master to communicate with multiple slaves usinq simple commands.

B.

Modbus is a proprietary protocol that is widely supported by vendors.

C.

Modbus uses explicit source and destination IP addresses and a sinqle known TCP port.

D.

Modbus has no known security vulnerabilities, so firewall rules are simple to implement.

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Question # 67

An industrial facility wants to ensure that only authorized systems reach its PLCs while minimizing disruption to time-sensitive control processes. Which type of firewall would BEST suit this need?

A.

General-purpose software firewall

B.

Unidirectional gateway (data diode)

C.

IACS-specific firewall with deep packet inspection

D.

Basic packet filter firewall without protocol awareness

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Question # 68

What is OPC?

Available Choices (select all choices that are correct)

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

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