Certification Topics of ISA-IEC-62443 Exam PDF Recently Updated Questions
ISA-IEC-62443 Exam Prep Guide: Prep guide for the ISA-IEC-62443 Exam
NEW QUESTION # 47
Which layer specifies the rules for Modbus Application Protocol
Available Choices (select all choices that are correct)
- A. Data link layer
- B. Application layer
- C. Presentation layer
- D. Session layer
Answer: B
NEW QUESTION # 48
Which of the following is an activity that should trigger a review of the CSMS?
Available Choices (select all choices that are correct)
- A. Security incident exposing previously unknown risk.
- B. Organizational restructuring
- C. New technical controls
- D. Budgeting
Answer: A
NEW QUESTION # 49
Which steps are included in the ISA/IEC 62443 assess phase?
Available Choices (select all choices that are correct)
- A. Allocation of IACS assets to zones and conduits, and detailed cyber risk assessment
- B. Cybersecurity requirements specification and allocation of IACS assets to zones and conduits
- C. Detailed cyber risk assessment and cybersecurity maintenance, monitoring, and management of change
- D. Cybersecurity requirements specification and detailed cyber risk assessment
Answer: B
NEW QUESTION # 50
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 normative references.
- B. They are not used.
- C. They are under consideration for future use.
- D. They are used as informative references.
Answer: D
NEW QUESTION # 51
What do packet filter firewalls examine?
Available Choices (select all choices that are correct)
- A. Every incoming packet up to the application layer
- B. Only the source, destination, and ports in the header of each packet
- C. The relationships between packets in a session
- D. The packet structure and sequence
Answer: B
NEW QUESTION # 52
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. Vulnerability scanner
- B. Web browser
- C. Remote desktop
- D. FTP
Answer: A
NEW QUESTION # 53
What are the two sublayers of Layer 2?
Available Choices (select all choices that are correct)
- A. HIDS and NIDS
- B. LLC and MAC
- C. OPC and DCOM
- D. VLAN and VPN
Answer: B
NEW QUESTION # 54
What are the connections between security zones called?
Available Choices (select all choices that are correct)
- A. Conduits
- B. Tunnels
- C. Pathways
- D. Firewalls
Answer: A
NEW QUESTION # 55
Which of the following is an industry sector-specific standard?
Available Choices (select all choices that are correct)
- A. ISO 27001
- B. NIST SP800-82
- C. ISA-62443 (EC 62443)
- D. API 1164
Answer: D
NEW QUESTION # 56
Which steps are part of implementing countermeasures?
Available Choices (select all choices that are correct)
- A. Select common countermeasures and collaborate with stakeholders.
- B. Establish the risk tolerance and update the business continuity plan.
- C. Select common countermeasures and update the business continuity plan.
- D. Establish the risk tolerance and select common countermeasures.
Answer: D
NEW QUESTION # 57
Which organization manages the ISASecure conformance certification program?
Available Choices (select all choices that are correct)
- A. American Society for Industrial Security
- B. Automation Federation
- C. Security Compliance Institute
- D. National Institute of Standards and Technology
Answer: C
NEW QUESTION # 58
Which of the following is the underlying protocol for Ethernet/IP?
Available Choices (select all choices that are correct)
- A. Object Linking and Embedding (OLE) for Process Control
- B. Common Industrial Protocol
- C. Highway Addressable Remote Transducer (HART)
- D. Building Automation and Control Network (BACnet)
Answer: B
NEW QUESTION # 59
Why is patch management more difficult for IACS than for business systems?
Available Choices (select all choices that are correct)
- A. Many more approvals are required.
- B. Business systems automatically update.
- C. Overtime pay is required for technicians.
- D. Patching a live automation system can create safety risks.
Answer: D
NEW QUESTION # 60
Multiuser accounts and shared passwords inherently carry which of the followinq risks?
Available Choices (select all choices that are correct)
- A. Buffer overflow
- B. Privilege escalation
- C. Unauthorized access
- D. Race conditions
Answer: B
NEW QUESTION # 61
Which is a role of the application layer?
Available Choices (select all choices that are correct)
- A. Provides the mechanism for opening, closing, and managing a session between end-user application
processes - B. Includes user applications specific to network applications such as email, file transfer, and reading data
registers in a PLC - C. Includes protocols specific to network applications such as email, file transfer, and reading data registers
in a PLC - D. Delivers and formats information, possibly with encryption and security
Answer: B
NEW QUESTION # 62
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