Free CYBERSECURITY-FUNDAMENTALS-SPECIALIST – Isa CYBERSECURITY-FUNDAMENTALS-SPECIALIST Practice Test Question

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• ○ Capability security level
• ○ Achieved security level
• ○ Design security level
• ○ Target security level

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• ○ Layer 1
• ○ Layer 2
• ○ Layer 3
• ○ Layer 7

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• ○ Modern IDS recognize IACS devices by default.
• ○ They are very inexpensive to design and deploy.
• ○ They are effective against known vulnerabilities.
• ○ They require a small amount of care and feeding

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• ○ SL-1, SL-2, and SL-3
• ○ Target, capability, and achieved
• ○ Target, capability, and availability
• ○ Target, capacity, and achieved

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• ○ The IACS security priority is integrity.
• ○ The IT security priority is availability.
• ○ IACS cybersecurity must address safety issues.
• ○ Routers are not used in IACS networks.

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• ○ Modbus uses a single master to communicate with multiple slaves using simple commands.
• ○ Modbus is a proprietary protocol that is widely supported by vendors.
• ○ Modbus uses explicit source and destination IP addresses and a single known TCP port.
• ○ Modbus has no known security vulnerabilities, so firewall rules are simple to implement.

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• ○ Ensures that users can access systems from remote locations
• ○ Ensures that users can access only certain devices on the network
• ○ Ensures that users can access only the functions they need for their job
• ○ Ensures that users correctly manage their username and password

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• ○ RS232
• ○ RS235
• ○ RS432
• ○ RS485

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• ○ An open standard protocol for real-time field bus communication between automation technology devices
• ○ An open standard protocol for the communication of real-time data between devices from different manufacturers
• ○ An open standard serial communications protocol widely used in industrial manufacturing environments
• ○ A vendor-specific proprietary protocol for the communication of real-time plant data between control devices

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• ○ Organizational lack of communication
• ○ Failure to relate to the mission of the organization
• ○ Insufficient documentation due to lack of good follow-up
• ○ Immediate jump into detailed risk assessment

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• ○ Session
• ○ Data link
• ○ Application
• ○ Presentation