Online ISA-IEC-62443 Exam Dumps Help You Build Confidence

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1. Which is the BEST deployment system for malicious code protection?

Available Choices (select all choices that are correct)

Network segmentation

IACS protocol converters

Application whitelistinq (AWL) O

Zones and conduits

2. In a defense-in-depth strategy, what is the purpose of role-based access control?

Available Choices (select all choices that are correct)

Ensures that users can access systems from remote locations

Ensures that users can access only certain devices on the network

Ensures that users can access only the functions they need for their job

Ensures that users correctly manage their username and password

3. What does the abbreviation CSMS round in ISA 62443-2-1 represent?

Available Choices (select all choices that are correct)

Control System Management System

Control System Monitoring System

Cyber Security Management System

Cyber Security Monitoring System

4. Why is patch management more difficult for IACS than for business systems?

Available Choices (select all choices that are correct)

Overtime pay is required for technicians.

Many more approvals are required.

Patching a live automation system can create safety risks.

Business systems automatically update.

5. Which is a commonly used protocol for managing secure data transmission on the Internet? Available Choices (select all choices that are correct)

Datagram Transport Layer Security (DTLS)

Microsoft Point-to-Point Encryption

Secure Telnet

Secure Sockets Layer

6. Which of the following is a recommended default rule for IACS firewalls?

Available Choices (select all choices that are correct)

Allow all traffic by default.

Allow IACS devices to access the Internet.

Allow traffic directly from the IACS network to the enterprise network.

Block all traffic by default.

7. The Risk Analysis category contains background information that is used where?

Available Choices (select all choices that are correct)

Many other elements in the CSMS

(Elements external to the CSMS

Only the Assessment element

Only the Risk ID element

8. Which of the following is a trend that has caused a significant percentage of security vulnerabilities? Available Choices (select all choices that are correct)

IACS developing into a network of air-gapped systems

IACS evolving into a number of closed proprietary systems

IACS using equipment designed for measurement and control

IACS becoming integrated with business and enterprise systems

9. How many element qroups are in the "Addressinq Risk" CSMS cateqorv?

Available Choices (select all choices that are correct)

10. 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

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

Available Choices (select all choices that are correct)

Firewalls and unexpected protocols being used

IDS sensors deployed within multiple zones in the production environment

Role-based access control and unusual data transfer patterns

Role-based access control and VPNs

12. Which is the BEST practice when establishing security zones?

Available Choices (select all choices that are correct)

Security zones should contain assets that share common security requirements.

Security zones should align with physical network segments.

Assets within the same logical communication network should be in the same security zone.

All components in a large or complex system should be in the same security zone.

13. 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.

14. 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

15. Which of the ISA 62443 standards focuses on the process of developing secure products?

Available Choices (select all choices that are correct)

62443-1-1

62443-3-2

62443-3-3

62443-4-1

16. Which characteristic is MOST closely associated with the deployment of a demilitarized zone (DMZ)? Available Choices (select all choices that are correct)

Level 4 systems must use the DMZ to communicate with Level 3 and below.

Level 0 can only interact with Level 1 through the firewall.

Internet access through the firewall is allowed.

Email is prevented, thereby mitigating the risk of phishing attempts.

17. Multiuser accounts and shared passwords inherently carry which of the followinq risks?

Available Choices (select all choices that are correct)

Privilege escalation

Buffer overflow

Unauthorized access

Race conditions

18. After receiving an approved patch from the JACS vendor, what is BEST practice for the asset owner to follow?

vailable Choices (select all choices that are correct)

If a low priority, there is no need to apply the patch.

If a medium priority, schedule the installation within three months after receipt.

If a high priority, apply the patch at the first unscheduled outage.

If no problems are experienced with the current IACS, it is not necessary to apply the patch.

19. Electronic security, as defined in ANSI/ISA-99.00.01:2007. includes which of the following? Available Choices (select all choices that are correct)

Security guidelines for the proper configuration of IACS computers and operating systems

Computers, networks, operating systems, applications, and other programmable configurable components of the system

Personnel, policies, and procedures related to the security of computers, networks. PLCs, and other programmable configurable components of the system

Security guidelines for the proper configuration of IACS PLCs and other programmable configurable components of the system

20. 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

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21. 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

22. What is OPC?

Available Choices (select all choices that are correct)

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

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

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

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

23. 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)

24. Whose responsibility is it to determine the level of risk an organization is willing to tolerate? Available Choices (select all choices that are correct)

Management

Legal Department

Operations Department

Safety Department

25. Which of the following is an example of separation of duties as a part of system development and maintenance?

Available Choices (select all choices that are correct)

Changes are approved by one party and implemented by another.

Configuration settings are made by one party and self-reviewed using a checklist.

Developers write and then test their own code.

Design and implementation are performed by the same team.

26. What are the connections between security zones called?

Available Choices (select all choices that are correct)

Firewalls

Tunnels

Pathways

Conduits

27. 1.Which of the following is an element of monitoring and improving a CSMS?

Available Choices (select all choices that are correct)

Increase in staff training and security awareness

Restricted access to the industrial control system to an as-needed basis

Significant changes in identified risk round in periodic reassessments

Review of system logs and other key data files

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