[2023] Pass ISA ISA-IEC-62443 Exam in First Attempt Easily
The Most Efficient ISA-IEC-62443 Pdf Dumps For Assured Success
NEW QUESTION # 23
What are the three main components of the ISASecure Integrated Threat Analysis (ITA) Program?
Available Choices (select all choices that are correct)
- A. Communications robustness testing, functional security assurance, and software robustness
communications - B. Software development security assurance, functional security assessment, and communications
robustness testing - C. Communication speed, disaster recovery, and essential security functionality assessment
- D. Software robustness security testing, functional software assessment assurance, and essential security
functionality assessment
Answer: B
NEW QUESTION # 24
At Layer 4 of the Open Systems Interconnection (OSI) model, what identifies the application that will handle a
packet inside a host?
Available Choices (select all choices that are correct)
- A. ATCP/UDP port number
- B. ATCP/UDP application ID
- C. ATCP/UDP registry number
- D. A TCP/UDP host ID
Answer: A
NEW QUESTION # 25
What are the two sublayers of Layer 2?
Available Choices (select all choices that are correct)
- A. HIDS and NIDS
- B. OPC and DCOM
- C. VLAN and VPN
- D. LLC and MAC
Answer: D
NEW QUESTION # 26
Why is patch management more difficult for IACS than for business systems?
Available Choices (select all choices that are correct)
- A. Patching a live automation system can create safety risks.
- B. Business systems automatically update.
- C. Overtime pay is required for technicians.
- D. Many more approvals are required.
Answer: A
NEW QUESTION # 27
Authorization (user accounts) must be granted based on which of the following?
Available Choices (select all choices that are correct)
- A. Individual preferences
- B. Common needs for large groups
- C. Specific roles
- D. System complexity
Answer: C
NEW QUESTION # 28
Which is one of the PRIMARY goals of providing a framework addressing secure product development
life-cycle requirements?
Available Choices (select all choices that are correct)
- A. Defense-in-depth approach to designing
- B. Aligned development process
- C. Aligned needs of industrial users
- D. Well-documented security policies and procedures
Answer: A
NEW QUESTION # 29
What do packet filter firewalls examine?
Available Choices (select all choices that are correct)
- A. The relationships between packets in a session
- B. The packet structure and sequence
- C. Only the source, destination, and ports in the header of each packet
- D. Every incoming packet up to the application layer
Answer: C
NEW QUESTION # 30
Which is the PRIMARY objective when defining a security zone?
Available Choices (select all choices that are correct)
- A. All assets in the zone must be from the same vendor.
- B. All assets in the zone must be at the same level in the Purdue model.
- C. All assets in the zone must share the same security requirements.
- D. All assets in the zone must be physically located in the same area.
Answer: C
NEW QUESTION # 31
Which of the following is a recommended default rule for IACS firewalls?
Available Choices (select all choices that are correct)
- A. Allow IACS devices to access the Internet.
- B. Allow all traffic by default.
- C. Block all traffic by default.
- D. Allow traffic directly from the IACS network to the enterprise network.
Answer: C
NEW QUESTION # 32
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 # 33
What is the name of the protocol that implements serial Modbus over Ethernet?
Available Choices (select all choices that are correct)
- A. MODBUS/TCP
- B. MODBUS/CIP
- C. MODBUS/Ethernet
- D. MODBUS/Plus
Answer: A
NEW QUESTION # 34
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. Forwards packets, including routing through intermediate routers
- B. Gives transparent transfer of data between end users
- C. Handles the physics of getting a message from one device to another
- D. Provides the rules for framing, converting electrical signals to data
Answer: A
NEW QUESTION # 35
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 # 36
Which is a common pitfall when initiating a CSMS program?
Available Choices (select all choices that are correct)
- A. Insufficient documentation due to lack of good follow-up
- B. Organizational lack of communication
- C. Failure to relate to the mission of the organization
- D. Immediate jump into detailed risk assessment
Answer: C
NEW QUESTION # 37
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. 62443-3-2
- C. 62443-3-3
- D. 62443-1-1
Answer: A
NEW QUESTION # 38
Which of the following is an activity that should trigger a review of the CSMS?
Available Choices (select all choices that are correct)
- A. New technical controls
- B. Budgeting
- C. Organizational restructuring
- D. Security incident exposing previously unknown risk.
Answer: D
NEW QUESTION # 39
Which service does an Intrusion Detection System (IDS) provide?
Available Choices (select all choices that are correct)
- A. It is effective against all vulnerabilities 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 blocks malicious activity in networks and computer systems.
Answer: B
NEW QUESTION # 40
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