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質問 # 33
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. Asymmetric (public) key
- D. Stream ciphers
正解：C
質問 # 34
How many security levels are in the ISASecure certification program?
Available Choices (select all choices that are correct)
- A. 0
- B. 1
- C. 2
- D. 3
正解：C
質問 # 35
Which is an important difference between IT systems and IACS?
Available Choices (select all choices that are correct)
- A. The IACS security priority is integrity.
- B. IACS cybersecurity must address safety issues.
- C. Routers are not used in IACS networks.
- D. The IT security priority is availability.
正解：B
質問 # 36
Electronic security, as defined in ANSI/ISA-99.00.01:2007. includes which of the following?
Available Choices (select all choices that are correct)
- A. Security guidelines for the proper configuration of IACS PLCs and other programmable configurable
components of the system - B. Personnel, policies, and procedures related to the security of computers, networks. PLCs, and other
programmable configurable components of the system - C. Security guidelines for the proper configuration of IACS computers and operating systems
- D. Computers, networks, operating systems, applications, and other programmable configurable
components of the system
正解：B
質問 # 37
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 robustness security testing, functional software assessment assurance, and essential security
functionality assessment - C. Software development security assurance, functional security assessment, and communications
robustness testing - D. Communication speed, disaster recovery, and essential security functionality assessment
正解：C
質問 # 38
What do packet filter firewalls examine?
Available Choices (select all choices that are correct)
- A. Every incoming packet up to the application layer
- B. The relationships between packets in a session
- C. Only the source, destination, and ports in the header of each packet
- D. The packet structure and sequence
正解：C
質問 # 39
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. Security incident exposing previously unknown risk.
- C. Organizational restructuring
- D. Budgeting
正解：B
質問 # 40
Which activity is part of establishing policy, organization, and awareness?
Available Choices (select all choices that are correct)
- A. Identify detailed vulnerabilities.
- B. Communicate policies.
- C. Implement countermeasures.
- D. Establish the risk tolerance.
正解：B
質問 # 41
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. Immediate jump into detailed risk assessment
- C. Organizational lack of communication
- D. Failure to relate to the mission of the organization
正解：D
質問 # 42
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)
- A. Target.capacity, and achieved
- B. Target.capability, and availability
- C. SL-1, SL-2, and SL-3
- D. Target.capability, and achieved
正解：D
質問 # 43
Which of the following is a cause for the increase in attacks on IACS?
Available Choices (select all choices that are correct)
- A. Knowledge of exploits and tools readily available on the Internet
- B. The move away from commercial off the shelf (COTS) systems, protocols, and networks
- C. Fewer personnel with system knowledge having access to IACS
- D. Use of proprietary communications protocols
正解：B
質問 # 44
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 used as informative references.
- C. They are not used.
- D. They are under consideration for future use.
正解：B
質問 # 45
Which of the following is a trend that has caused a significant percentage of security vulnerabilities?
Available Choices (select all choices that are correct)
- A. IACS becoming integrated with business and enterprise systems
- B. IACS developing into a network of air-gapped systems
- C. IACS using equipment designed for measurement and control
- D. IACS evolving into a number of closed proprietary systems
正解：A
質問 # 46
Safety management staff are stakeholders of what security program development?
Available Choices (select all choices that are correct)
- A. CSA
- B. ERM
- C. CSMS
- D. SPRP
正解：C
質問 # 47
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 blocks malicious activity in networks and computer systems.
- D. It is the lock on the door for networks and computer systems.
正解：B
質問 # 48
Whose responsibility is it to determine the level of risk an organization is willing to tolerate?
Available Choices (select all choices that are correct)
- A. Legal Department
- B. Operations Department
- C. Safety Department
- D. Management
正解：D
質問 # 49
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
正解：B
質問 # 50
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