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NEW QUESTION # 38
What is defined as the hardware and software components of an IACS?
Available Choices (select all choices that are correct)
- A. Cybersecuritv
- B. Control system
- C. COTS software and hardware
- D. Electronic security
Answer: B
NEW QUESTION # 39
Which is a role of the application layer?
Available Choices (select all choices that are correct)
- A. Delivers and formats information, possibly with encryption and security
- B. Provides the mechanism for opening, closing, and managing a session between end-user application
processes - C. Includes user applications specific to network applications such as email, file transfer, and reading data
registers in a PLC - D. Includes protocols specific to network applications such as email, file transfer, and reading data registers
in a PLC
Answer: C
NEW QUESTION # 40
Which of the ISA 62443 standards focuses on the process of developing secure products?
Available Choices (select all choices that are correct)
- A. 62443-4-1
- B. 62443-3-3
- C. 62443-3-2
- D. 62443-1-1
Answer: A
NEW QUESTION # 41
Which factor drives the selection of countermeasures?
Available Choices (select all choices that are correct)
- A. Output from a risk assessment
- B. Security levels
- C. System design
- D. Foundational requirements
Answer: A
NEW QUESTION # 42
Who must be included in a training and security awareness program?
Available Choices (select all choices that are correct)
- A. Temporary staff
- B. All personnel
- C. Vendors and suppliers
- D. Employees
Answer: B
NEW QUESTION # 43
What is the definition of "defense in depth" when referring to
Available Choices (select all choices that are correct)
- A. Requiring a minimum distance requirement between security assets
- B. Aligning all resources to provide a broad technical gauntlet
- C. Applying multiple countermeasures in a layered or stepwise manner
- D. Using countermeasures that have intrinsic technical depth.
Answer: C
NEW QUESTION # 44
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)
- A. Target.capability, and availability
- B. SL-1, SL-2, and SL-3
- C. Target.capability, and achieved
- D. Target.capacity, and achieved
Answer: C
NEW QUESTION # 45
Why is patch management more difficult for IACS than for business systems?
Available Choices (select all choices that are correct)
- A. Overtime pay is required for technicians.
- B. Many more approvals are required.
- C. Business systems automatically update.
- D. Patching a live automation system can create safety risks.
Answer: D
NEW QUESTION # 46
Which of the following attacks relies on a human weakness to succeed?
Available Choices (select all choices that are correct)
- A. Denial-of-service
- B. Spoofing
- C. Escalation-of-privileges
- D. Phishing
Answer: D
NEW QUESTION # 47
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)
- A. Changes are approved by one party and implemented by another.
- B. Design and implementation are performed by the same team.
- C. Configuration settings are made by one party and self-reviewed using a checklist.
- D. Developers write and then test their own code.
Answer: A
NEW QUESTION # 48
Which of the following PRIMARILY determines access privileges for user accounts?
Available Choices (select all choices that are correct)
- A. Authorization security policy
- B. Common practice
- C. Users' desire for ease of use
- D. Technical capability
Answer: A
NEW QUESTION # 49
Whose responsibility is it to determine the level of risk an organization is willing to tolerate?
Available Choices (select all choices that are correct)
- A. Safety Department
- B. Management
- C. Legal Department
- D. Operations Department
Answer: B
NEW QUESTION # 50
What is the FIRST step required in implementing ISO 27001?
Available Choices (select all choices that are correct)
- A. Perform a security risk assessment.
- B. Implement strict security controls.
- C. Define an information security policy.
- D. Create a security management organization.
Answer: D
NEW QUESTION # 51
In an IACS system, a typical security conduit consists of which of the following assets?
Available Choices (select all choices that are correct)
- A. Wiring, routers, switches, and network management devices
- B. Controllers, sensors, transmitters, and final control elements
- C. Power lines, cabinet enclosures, and protective grounds
- D. Ferrous, thickwall, and threaded conduit including raceways
Answer: A
NEW QUESTION # 52
Which policies and procedures publication is titled Patch Manaqement in the IACS Environment?
Available Choices (select all choices that are correct)
- A. ISA-TR62443-1-4
- B. ISA-62443-3-3
- C. ISA-TR62443-2-3
- D. ISA-62443-4-2
Answer: C
NEW QUESTION # 53
Which of the following is a trend that has caused a significant percentage of security vulnerabilities?
Available Choices (select all choices that are correct)
- A. IACS evolving into a number of closed proprietary systems
- B. IACS developing into a network of air-gapped systems
- C. IACS becoming integrated with business and enterprise systems
- D. IACS using equipment designed for measurement and control
Answer: C
NEW QUESTION # 54
Which of the following is the BEST example of detection-in-depth best practices?
Available Choices (select all choices that are correct)
- A. IDS sensors deployed within multiple zones in the production environment
- B. Role-based access control and unusual data transfer patterns
- C. Firewalls and unexpected protocols being used
- D. Role-based access control and VPNs
Answer: A
NEW QUESTION # 55
Which is the BEST deployment system for malicious code protection?
Available Choices (select all choices that are correct)
- A. Zones and conduits
- B. Network segmentation
- C. Application whitelistinq (AWL) OD.
- D. IACS protocol converters
Answer: A
NEW QUESTION # 56
What are three possible entry points (pathways) that could be used for launching a cyber attack?
Available Choices (select all choices that are correct)
- A. LAN, WAN, and hard drive
- B. LAN, power source, and wireless OD.
- C. LAN, portable media, and hard drives
- D. LAN, portable media, and wireless
Answer: D
NEW QUESTION # 57
Which of the following is a cause for the increase in attacks on IACS?
Available Choices (select all choices that are correct)
- A. Fewer personnel with system knowledge having access to IACS
- B. The move away from commercial off the shelf (COTS) systems, protocols, and networks
- C. Knowledge of exploits and tools readily available on the Internet
- D. Use of proprietary communications protocols
Answer: B
NEW QUESTION # 58
Multiuser accounts and shared passwords inherently carry which of the followinq risks?
Available Choices (select all choices that are correct)
- A. Race conditions
- B. Privilege escalation
- C. Buffer overflow
- D. Unauthorized access
Answer: B
NEW QUESTION # 59
What does Layer 1 of the ISO/OSI protocol stack provide?
Available Choices (select all choices that are correct)
- A. The electrical and physical specifications of the data connection
- B. Data encryption, routing, and end-to-end connectivity
- C. User applications specific to network applications such as reading data registers in a PLC
- D. Framing, converting electrical signals to data, and error checking
Answer: A
NEW QUESTION # 60
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