Easily To Pass New ISA-IEC-62443 Verified & Correct Answers [Dec 16, 2023
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NEW QUESTION # 43
Which characteristic is MOST closely associated with the deployment of a demilitarized zone (DMZ)?
Available Choices (select all choices that are correct)
- A. Email is prevented, thereby mitigating the risk of phishing attempts.
- B. Internet access through the firewall is allowed.
- C. Level 4 systems must use the DMZ to communicate with Level 3 and below.
- D. Level 0 can only interact with Level 1 through the firewall.
Answer: C
NEW QUESTION # 44
Which is the PRIMARY responsibility of the network layer of the Open Systems Interconnection (OSI)
model?
Available Choices (select all choices that are correct)
- A. Provides the rules for framing, converting electrical signals to data
- B. Forwards packets, including routing through intermediate routers
- C. Gives transparent transfer of data between end users
- D. Handles the physics of getting a message from one device to another
Answer: B
NEW QUESTION # 45
Which of the following is a cause for the increase in attacks on IACS?
Available Choices (select all choices that are correct)
- A. The move away from commercial off the shelf (COTS) systems, protocols, and networks
- B. Use of proprietary communications protocols
- C. Fewer personnel with system knowledge having access to IACS
- D. Knowledge of exploits and tools readily available on the Internet
Answer: A
NEW QUESTION # 46
What is the purpose of ISO/IEC 15408 (Common Criteria)?
Available Choices (select all choices that are correct)
- A. To define a security management organization
- B. To describe what constitutes a secure product
- C. To describe a process for risk management
- D. To define a product development evaluation methodology
Answer: D
NEW QUESTION # 47
Which layer in the Open Systems Interconnection (OSI) model would include the use of the File Transfer
Protocol (FTP)?
Available Choices (select all choices that are correct)
- A. Application layer
- B. Session layer
- C. Data link layer
- D. Transport layer
Answer: A
NEW QUESTION # 48
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)
- A. They are used as informative references.
- B. They are used as normative references.
- C. They are under consideration for future use.
- D. They are not used.
Answer: A
NEW QUESTION # 49
Authorization (user accounts) must be granted based on which of the following?
Available Choices (select all choices that are correct)
- A. Specific roles
- B. Individual preferences
- C. Common needs for large groups
- D. System complexity
Answer: A
NEW QUESTION # 50
Which type of cryptographic algorithms requires more than one key?
Available Choices (select all choices that are correct)
- A. Block ciphers
- B. Stream ciphers
- C. Symmetric (private) key
- D. Asymmetric (public) key
Answer: D
NEW QUESTION # 51
Which of the following is an activity that should trigger a review of the CSMS?
Available Choices (select all choices that are correct)
- A. Budgeting
- B. New technical controls
- C. Organizational restructuring
- D. Security incident exposing previously unknown risk.
Answer: D
NEW QUESTION # 52
In an IACS system, a typical security conduit consists of which of the following assets?
Available Choices (select all choices that are correct)
- A. Power lines, cabinet enclosures, and protective grounds
- B. Controllers, sensors, transmitters, and final control elements
- C. Wiring, routers, switches, and network management devices
- D. Ferrous, thickwall, and threaded conduit including raceways
Answer: C
NEW QUESTION # 53
What is the definition of "defense in depth" when referring to
Available Choices (select all choices that are correct)
- A. Applying multiple countermeasures in a layered or stepwise manner
- B. Using countermeasures that have intrinsic technical depth.
- C. Aligning all resources to provide a broad technical gauntlet
- D. Requiring a minimum distance requirement between security assets
Answer: A
NEW QUESTION # 54
Which steps are part of implementing countermeasures?
Available Choices (select all choices that are correct)
- A. Select common countermeasures and update the business continuity plan.
- B. Establish the risk tolerance and update the business continuity plan.
- C. Establish the risk tolerance and select common countermeasures.
- D. Select common countermeasures and collaborate with stakeholders.
Answer: C
NEW QUESTION # 55
How many security levels are in the ISASecure certification program?
Available Choices (select all choices that are correct)
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 56
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 has no known security vulnerabilities, so firewall rules are simple to implement.
- B. Modbus is a proprietary protocol that is widely supported by vendors.
- C. Modbus uses a single master to communicate with multiple slaves usinq simple commands.
- D. Modbus uses explicit source and destination IP addresses and a sinqle known TCP port.
Answer: D
NEW QUESTION # 57
Which of the following tools has the potential for serious disruption of a control network and should not be
used on a live system?
Available Choices (select all choices that are correct)
- A. FTP
- B. Remote desktop
- C. Vulnerability scanner
- D. Web browser
Answer: C
NEW QUESTION # 58
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)
- A. Zone model
- B. Reference model
- C. Reference architecture
- D. Asset model
Answer: B
NEW QUESTION # 59
Electronic security, as defined in ANSI/ISA-99.00.01:2007. includes which of the following?
Available Choices (select all choices that are correct)
- A. Security guidelines for the proper configuration of IACS PLCs and other programmable configurable
components of the system - B. Security guidelines for the proper configuration of IACS computers and operating systems
- C. Computers, networks, operating systems, applications, and other programmable configurable
components of the system - D. Personnel, policies, and procedures related to the security of computers, networks. PLCs, and other
programmable configurable components of the system
Answer: D
NEW QUESTION # 60
In which layer is the physical address assigned?
Available Choices (select all choices that are correct)
- A. Layer 7
- B. Layer 3
- C. Layer 1
- D. Layer 2
Answer: D
NEW QUESTION # 61
Which of the following is an industry sector-specific standard?
Available Choices (select all choices that are correct)
- A. NIST SP800-82
- B. API 1164
- C. ISA-62443 (EC 62443)
- D. ISO 27001
Answer: B
NEW QUESTION # 62
Which activity is part of establishing policy, organization, and awareness?
Available Choices (select all choices that are correct)
- A. Establish the risk tolerance.
- B. Identify detailed vulnerabilities.
- C. Communicate policies.
- D. Implement countermeasures.
Answer: C
NEW QUESTION # 63
Safety management staff are stakeholders of what security program development?
Available Choices (select all choices that are correct)
- A. ERM
- B. CSA
- C. SPRP
- D. CSMS
Answer: D
NEW QUESTION # 64
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, power source, and wireless OD.
- B. LAN, WAN, and hard drive
- C. LAN, portable media, and hard drives
- D. LAN, portable media, and wireless
Answer: D
NEW QUESTION # 65
What are the connections between security zones called?
Available Choices (select all choices that are correct)
- A. Tunnels
- B. Conduits
- C. Pathways
- D. Firewalls
Answer: B
NEW QUESTION # 66
What is defined as the hardware and software components of an IACS?
Available Choices (select all choices that are correct)
- A. Electronic security
- B. Cybersecuritv
- C. Control system
- D. COTS software and hardware
Answer: C
NEW QUESTION # 67
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