[May-2024] ISA-IEC-62443 Exam Dumps, ISA-IEC-62443 Practice Test Questions
Attested ISA-IEC-62443 Dumps PDF Resource [2024]
NEW QUESTION # 17
Which is a physical layer standard for serial communications between two or more devices?
Available Choices (select all choices that are correct)
- A. RS232
- B. RS235
- C. RS432
- D. RS435
Answer: D
NEW QUESTION # 18
Which type of cryptographic algorithms requires more than one key?
Available Choices (select all choices that are correct)
- A. Symmetric (private) key
- B. Block ciphers
- C. Asymmetric (public) key
- D. Stream ciphers
Answer: C
NEW QUESTION # 19
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 # 20
Which statement is TRUE reqardinq application of patches in an IACS environment?
Available Choices (select all choices that are correct)
- A. Patches should be applied as soon as they are available.
- B. Patches should be applied based on the organization's risk assessment.
- C. Patches should be applied within one month of availability.
- D. Patches never should be applied in an IACS environment.
Answer: B
NEW QUESTION # 21
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 wireless
- D. LAN, portable media, and hard drives
Answer: C
NEW QUESTION # 22
How many element qroups are in the "Addressinq Risk" CSMS cateqorv?
Available Choices (select all choices that are correct)
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 23
Which is a reason for
and physical security regulations meeting a mixed resistance?
Available Choices (select all choices that are correct)
- A. Regulations contain only informative elements.
- B. There are a limited number of enforced cybersecurity and physical security regulations.
- C. Cybersecurity risks can best be managed individually and in isolation.
- D. Regulations are voluntary documents.
Answer: B
NEW QUESTION # 24
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. Asset model
- D. Reference architecture
Answer: B
NEW QUESTION # 25
Which of the following can be employed as a barrier device in a segmented network?
Available Choices (select all choices that are correct)
- A. VPN
- B. Router
- C. Domain controller
- D. Unmanaged switch
Answer: B
NEW QUESTION # 26
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. Web browser
- B. Vulnerability scanner
- C. FTP
- D. Remote desktop
Answer: B
NEW QUESTION # 27
What are the four main categories for documents in the ISA-62443 (IEC 62443) series?
Available Choices (select all choices that are correct)
- A. End-User, Integrator, Vendor, and Regulator
- B. Assessment. Mitigation. Documentation, and Maintenance
- C. People. Processes. Technology, and Training
- D. General. Policies and Procedures. System, and Component
Answer: D
NEW QUESTION # 28
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 detailed cyber risk assessment
- C. Detailed cyber risk assessment and cybersecurity maintenance, monitoring, and management of change
- D. Cybersecurity requirements specification and allocation of IACS assets to zones and conduits
Answer: D
NEW QUESTION # 29
What does Layer 1 of the ISO/OSI protocol stack provide?
Available Choices (select all choices that are correct)
- A. Data encryption, routing, and end-to-end connectivity
- B. Framing, converting electrical signals to data, and error checking
- C. The electrical and physical specifications of the data connection
- D. User applications specific to network applications such as reading data registers in a PLC
Answer: C
NEW QUESTION # 30
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 explicit source and destination IP addresses and a sinqle known TCP port.
- D. Modbus uses a single master to communicate with multiple slaves usinq simple commands.
Answer: C
NEW QUESTION # 31
Which of the following is an element of monitoring and improving a CSMS?
Available Choices (select all choices that are correct)
- A. Restricted access to the industrial control system to an as-needed basis
- B. Significant changes in identified risk round in periodic reassessments
- C. Increase in staff training and security awareness
- D. Review of system logs and other key data files
Answer: D
NEW QUESTION # 32
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. Patching a live automation system can create safety risks.
- D. Overtime pay is required for technicians.
Answer: C
NEW QUESTION # 33
The Risk Analysis category contains background information that is used where?
Available Choices (select all choices that are correct)
- A. Many other elements in the CSMS
- B. (Elements external to the CSMS
- C. Only the Risk ID element
- D. Only the Assessment element
Answer: C
NEW QUESTION # 34
What.are the two elements of the risk analysis category of an IACS?
Available Choices (select all choices that are correct)
- A. Business rationale and risk reduction and avoidance
- B. Business recovery and risk elimination or mitigation
- C. Risk evaluation and risk identification
- D. Business rationale and risk identification and classification
Answer: D
NEW QUESTION # 35
Which is the implementation of PROFIBUS over Ethernet for non-safetv-related communications?
Available Choices (select all choices that are correct)
- A. PROFIBUS DP
- B. PROF1SAFE
- C. PROFINET
- D. PROFIBUS PA
Answer: C
NEW QUESTION # 36
Why is OPC Classic considered firewall unfriendly?
Available Choices (select all choices that are correct)
- A. OPC Classic is allowed to use only port 80.
- B. OPC Classic is an obsolete communication standard.
- C. OPC Classic works with control devices from different manufacturers.
- D. OPC Classic uses DCOM, which dynamically assigns any port between 1024 and 65535.
Answer: D
NEW QUESTION # 37
Which activity is part of establishing policy, organization, and awareness?
Available Choices (select all choices that are correct)
- A. Establish the risk tolerance.
- B. Implement countermeasures.
- C. Communicate policies.
- D. Identify detailed vulnerabilities.
Answer: C
NEW QUESTION # 38
Which service does an Intrusion Detection System (IDS) provide?
Available Choices (select all choices that are correct)
- A. It blocks malicious activity in networks and computer systems.
- B. It detects attempts to break into or misuse a computer system.
- C. It is the lock on the door for networks and computer systems.
- D. It is effective against all vulnerabilities in networks and computer systems.
Answer: B
NEW QUESTION # 39
Which of the following is an element of security policy, organization, and awareness?
Available Choices (select all choices that are correct)
- A. Staff training and security awareness
- B. Technical requirement assessment
- C. Penetration testing
- D. Product development requirements
Answer: B
NEW QUESTION # 40
What are the three main components of the ISASecure Integrated Threat Analysis (ITA) Program?
Available Choices (select all choices that are correct)
- A. Software development security assurance, functional security assessment, and communications
robustness testing - B. Communication speed, disaster recovery, and essential security functionality assessment
- C. Communications robustness testing, functional security assurance, and software robustness
communications - D. Software robustness security testing, functional software assessment assurance, and essential security
functionality assessment
Answer: A
NEW QUESTION # 41
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