Authentic ISA-IEC-62443 Dumps - Free PDF Questions to Pass
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NEW QUESTION # 15
Which of the following is the underlying protocol for Ethernet/IP?
Available Choices (select all choices that are correct)
- A. Building Automation and Control Network (BACnet)
- B. Common Industrial Protocol
- C. Object Linking and Embedding (OLE) for Process Control
- D. Highway Addressable Remote Transducer (HART)
Answer: B
NEW QUESTION # 16
Which is the BEST deployment system for malicious code protection?
Available Choices (select all choices that are correct)
- A. Zones and conduits
- B. IACS protocol converters
- C. Network segmentation
- D. Application whitelistinq (AWL) OD.
Answer: A
NEW QUESTION # 17
In an IACS system, a typical security conduit consists of which of the following assets?
Available Choices (select all choices that are correct)
- A. Ferrous, thickwall, and threaded conduit including raceways
- B. Controllers, sensors, transmitters, and final control elements
- C. Wiring, routers, switches, and network management devices
- D. Power lines, cabinet enclosures, and protective grounds
Answer: C
NEW QUESTION # 18
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. Aligned development process
- B. Well-documented security policies and procedures
- C. Defense-in-depth approach to designing
- D. Aligned needs of industrial users
Answer: C
NEW QUESTION # 19
Which of the following is a cause for the increase in attacks on IACS?
Available Choices (select all choices that are correct)
- A. Use of proprietary communications protocols
- 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. Fewer personnel with system knowledge having access to IACS
Answer: B
NEW QUESTION # 20
Safety management staff are stakeholders of what security program development?
Available Choices (select all choices that are correct)
- A. CSA
- B. ERM
- C. SPRP
- D. CSMS
Answer: D
NEW QUESTION # 21
What is OPC?
Available Choices (select all choices that are correct)
- A. A vendor-specific proprietary protocol for the communication of real-time plant data between control devices
- B. An open standard protocol for the communication of real-time data between devices from different
manufacturers - C. An open standard serial communications protocol widely used in industrial manufacturing environments
- D. An open standard protocol for real-time field bus communication between automation technology
devices
Answer: B
NEW QUESTION # 22
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 uses explicit source and destination IP addresses and a sinqle known TCP port.
- B. Modbus uses a single master to communicate with multiple slaves usinq simple commands.
- C. Modbus is a proprietary protocol that is widely supported by vendors.
- D. Modbus has no known security vulnerabilities, so firewall rules are simple to implement.
Answer: A
NEW QUESTION # 23
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 under consideration for future use.
- B. They are not used.
- C. They are used as normative references.
- D. They are used as informative references.
Answer: D
NEW QUESTION # 24
Which is a reason for
and physical security regulations meeting a mixed resistance?
Available Choices (select all choices that are correct)
- A. Cybersecurity risks can best be managed individually and in isolation.
- B. There are a limited number of enforced cybersecurity and physical security regulations.
- C. Regulations contain only informative elements.
- D. Regulations are voluntary documents.
Answer: B
NEW QUESTION # 25
What is a feature of an asymmetric key?
Available Choices (select all choices that are correct)
- A. Has lower network overhead
- B. Shares the same key OD.
- C. Uses a continuous stream
- D. Uses different keys
Answer: D
NEW QUESTION # 26
What is a commonly used protocol for managing secure data transmission over a Virtual Private Network
(VPN)?
Available Choices (select all choices that are correct)
- A. IPSec
- B. MPLS
- C. SSH
- D. HTTPS
Answer: A
NEW QUESTION # 27
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 # 28
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 registry number
- B. ATCP/UDP application ID
- C. ATCP/UDP port number
- D. A TCP/UDP host ID
Answer: C
NEW QUESTION # 29
Which of the following is the BEST reason for periodic audits?
Available Choices (select all choices that are correct)
- A. To validate that security policies and procedures are performing
- B. To meet regulations
- C. To confirm audit procedures
- D. To adhere to a published or approved schedule
Answer: A
NEW QUESTION # 30
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 uses DCOM, which dynamically assigns any port between 1024 and 65535.
- C. OPC Classic works with control devices from different manufacturers.
- D. OPC Classic is an obsolete communication standard.
Answer: B
NEW QUESTION # 31
Which type of cryptographic algorithms requires more than one key?
Available Choices (select all choices that are correct)
- A. Block ciphers
- B. Symmetric (private) key
- C. Stream ciphers
- D. Asymmetric (public) key
Answer: D
NEW QUESTION # 32
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 within one month of availability.
- B. Patches never should be applied in an IACS environment.
- C. Patches should be applied based on the organization's risk assessment.
- D. Patches should be applied as soon as they are available.
Answer: C
NEW QUESTION # 33
Which communications system covers a large geographic area?
Available Choices (select all choices that are correct)
- A. Wide Area Network (WAN)
- B. Storage Area Network
- C. Campus Area Network (CAN)
- D. Local Area Network (LAN)
Answer: A
NEW QUESTION # 34
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 physically located in the same area.
- B. All assets in the zone must be from the same vendor.
- C. All assets in the zone must share the same security requirements.
- D. All assets in the zone must be at the same level in the Purdue model.
Answer: C
NEW QUESTION # 35
Which of the following PRIMARILY determines access privileges for user accounts?
Available Choices (select all choices that are correct)
- A. Users' desire for ease of use
- B. Technical capability
- C. Common practice
- D. Authorization security policy
Answer: D
NEW QUESTION # 36
Which is the implementation of PROFIBUS over Ethernet for non-safetv-related communications?
Available Choices (select all choices that are correct)
- A. PROF1SAFE
- B. PROFIBUS PA
- C. PROFIBUS DP
- D. PROFINET
Answer: D
NEW QUESTION # 37
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