[Nov-2023] Check your preparation for ISA ISA-IEC-62443 On-Demand Exam [Q35-Q57]

ISA-IEC-62443 ISA

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[Nov-2023] Check your preparation for ISA ISA-IEC-62443 On-Demand Exam [Q35-Q57]

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[Nov-2023] Check your preparation for ISA ISA-IEC-62443 On-Demand Exam

Practice Exam ISA-IEC-62443 Realistic Dumps Verified Questions

QUESTION 35
Using the risk matrix below, what is the risk of a medium likelihood event with high consequence?

Option A

Option B

Option C

Option D

QUESTION 36
Which of the following is an element of security policy, organization, and awareness?
Available Choices (select all choices that are correct)

Product development requirements

Staff training and security awareness

Technical requirement assessment

Penetration testing

QUESTION 37
Within the National Institute of Standards and Technoloqv Cybersecuritv Framework v1.0 (NIST CSF), what
is the status of the ISA 62443 standards?
Available Choices (select all choices that are correct)

They are used as informative references.

They are used as normative references.

They are under consideration for future use.

They are not used.

QUESTION 38
Which is the PRIMARY reason why Modbus over Ethernet is easy to manaqe in a firewall?
Available Choices (select all choices that are correct)

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

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

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

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

QUESTION 39
Which of the following refers to internal rules that govern how an organization protects critical system
resources?
Available Choices (select all choices that are correct)

Formal guidance

Legislation

Security policy
D- Code of conduct

QUESTION 40
Which is an important difference between IT systems and IACS?
Available Choices (select all choices that are correct)

The IACS security priority is integrity.

The IT security priority is availability.

IACS cybersecurity must address safety issues.

Routers are not used in IACS networks.

QUESTION 41
Which is a common pitfall when initiating a CSMS program?
Available Choices (select all choices that are correct)

Organizational lack of communication

Failure to relate to the mission of the organization

Insufficient documentation due to lack of good follow-up

Immediate jump into detailed risk assessment

QUESTION 42
Why is OPC Classic considered firewall unfriendly?
Available Choices (select all choices that are correct)

OPC Classic uses DCOM, which dynamically assigns any port between 1024 and 65535.

OPC Classic is allowed to use only port 80.

OPC Classic works with control devices from different manufacturers.

OPC Classic is an obsolete communication standard.

QUESTION 43
Which layer specifies the rules for Modbus Application Protocol
Available Choices (select all choices that are correct)

Data link layer

Session layer

Presentation layer

Application layer

QUESTION 44
How many element qroups are in the “Addressinq Risk” CSMS cateqorv?
Available Choices (select all choices that are correct)

QUESTION 45
What is the definition of “defense in depth” when referring to
Available Choices (select all choices that are correct)

Using countermeasures that have intrinsic technical depth.

Aligning all resources to provide a broad technical gauntlet

Requiring a minimum distance requirement between security assets

Applying multiple countermeasures in a layered or stepwise manner

QUESTION 46
What is a commonly used protocol for managing secure data transmission over a Virtual Private Network
(VPN)?
Available Choices (select all choices that are correct)

HTTPS

IPSec

MPLS

SSH

QUESTION 47
Which of the following is the BEST reason for periodic audits?
Available Choices (select all choices that are correct)

To confirm audit procedures

To meet regulations

To validate that security policies and procedures are performing

To adhere to a published or approved schedule

QUESTION 48
Which steps are part of implementing countermeasures?
Available Choices (select all choices that are correct)

Establish the risk tolerance and select common countermeasures.

Establish the risk tolerance and update the business continuity plan.

Select common countermeasures and update the business continuity plan.

Select common countermeasures and collaborate with stakeholders.

QUESTION 49
Which communications system covers a large geographic area?
Available Choices (select all choices that are correct)

Campus Area Network (CAN)

Local Area Network (LAN)

Storage Area Network

Wide Area Network (WAN)

QUESTION 50
What is defined as the hardware and software components of an IACS?
Available Choices (select all choices that are correct)

COTS software and hardware

Electronic security

Control system

Cybersecuritv

QUESTION 51
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)

ATCP/UDP application ID

A TCP/UDP host ID

ATCP/UDP port number

ATCP/UDP registry number

QUESTION 52
What is the FIRST step required in implementing ISO 27001?
Available Choices (select all choices that are correct)

Create a security management organization.

Define an information security policy.

Implement strict security controls.

Perform a security risk assessment.

QUESTION 53
Which of the following is a cause for the increase in attacks on IACS?
Available Choices (select all choices that are correct)

Use of proprietary communications protocols

The move away from commercial off the shelf (COTS) systems, protocols, and networks

Knowledge of exploits and tools readily available on the Internet

Fewer personnel with system knowledge having access to IACS

QUESTION 54
What.are the two elements of the risk analysis category of an IACS?
Available Choices (select all choices that are correct)

Risk evaluation and risk identification

Business rationale and risk reduction and avoidance

Business rationale and risk identification and classification

Business recovery and risk elimination or mitigation

QUESTION 55
Which of the following provides the overall conceptual basis in the design of an appropriate security program?
Available Choices (select all choices that are correct)

Asset model

Zone model

Reference model

Reference architecture

QUESTION 56
In which layer is the physical address assigned?
Available Choices (select all choices that are correct)

Layer 1

Layer 2

Layer 3

Layer 7

QUESTION 57
Which is a PRIMARY reason why network security is important in IACS environments?
Available Choices (select all choices that are correct)

PLCs are inherently unreliable.

PLCs are programmed using ladder logic.

PLCs use serial or Ethernet communications methods.

PLCs under cyber attack can have costly and dangerous impacts.

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[Nov-2023] Check your preparation for ISA ISA-IEC-62443 On-Demand Exam [Q35-Q57]

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