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NEW QUESTION # 34
Which service does an Intrusion Detection System (IDS) provide?
Available Choices (select all choices that are correct)

• A. It detects attempts to break into or misuse a computer system.
• B. It blocks malicious activity in networks and computer systems.
• C. It is effective against all vulnerabilities in networks and computer systems.
• D. It is the lock on the door for networks and computer systems.

Answer: A

NEW QUESTION # 35
Which steps are included in the ISA/IEC 62443 assess phase?
Available Choices (select all choices that are correct)

• A. Detailed cyber risk assessment and cybersecurity maintenance, monitoring, and management of change
• B. Cybersecurity requirements specification and allocation of IACS assets to zones and conduits
• C. Allocation of IACS assets to zones and conduits, and detailed cyber risk assessment
• D. Cybersecurity requirements specification and detailed cyber risk assessment

Answer: B

NEW QUESTION # 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. Computers, networks, operating systems, applications, and other programmable configurable
  components of the system
• B. Security guidelines for the proper configuration of IACS computers and operating systems
• C. Security guidelines for the proper configuration of IACS PLCs and other programmable configurable
  components of the system
• D. Personnel, policies, and procedures related to the security of computers, networks. PLCs, and other
  programmable configurable components of the system

Answer: D

NEW QUESTION # 37
Which is a PRIMARY reason why network security is important in IACS environments?
Available Choices (select all choices that are correct)

• A. PLCs are inherently unreliable.
• B. PLCs are programmed using ladder logic.
• C. PLCs use serial or Ethernet communications methods.
• D. PLCs under cyber attack can have costly and dangerous impacts.

Answer: D

NEW QUESTION # 38
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 should be applied as soon as they are available.
• C. Patches never should be applied in an IACS environment.
• D. Patches should be applied based on the organization's risk assessment.

Answer: D

NEW QUESTION # 39
What are the two sublayers of Layer 2?
Available Choices (select all choices that are correct)

• A. VLAN and VPN
• B. HIDS and NIDS
• C. OPC and DCOM
• D. LLC and MAC

Answer: D

NEW QUESTION # 40
What does Layer 1 of the ISO/OSI protocol stack provide?
Available Choices (select all choices that are correct)

• A. User applications specific to network applications such as reading data registers in a PLC
• B. Data encryption, routing, and end-to-end connectivity
• C. Framing, converting electrical signals to data, and error checking
• D. The electrical and physical specifications of the data connection

Answer: D

NEW QUESTION # 41
Authorization (user accounts) must be granted based on which of the following?
Available Choices (select all choices that are correct)

• A. Specific roles
• B. System complexity
• C. Individual preferences
• D. Common needs for large groups

Answer: A

NEW QUESTION # 42
Security Levels (SLs) are broken down into which three types?
Available Choices (select all choices that are correct)

• A. Target.capability, and achieved
• B. SL-1, SL-2, and SL-3
• C. Target.capability, and availability
• D. Target.capacity, and achieved

Answer: A

NEW QUESTION # 43
Which statement is TRUE regarding Intrusion Detection Systems (IDS)?
Available Choices (select all choices that are correct)

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

Answer: C

NEW QUESTION # 44
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. Reference model
• B. Reference architecture
• C. Zone model
• D. Asset model

Answer: A

NEW QUESTION # 45
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 # 46
Which characteristic is MOST closely associated with the deployment of a demilitarized zone (DMZ)?
Available Choices (select all choices that are correct)

• A. Internet access through the firewall is allowed.
• B. Email is prevented, thereby mitigating the risk of phishing attempts.
• C. Level 0 can only interact with Level 1 through the firewall.
• D. Level 4 systems must use the DMZ to communicate with Level 3 and below.

Answer: D

NEW QUESTION # 47
Which of the following is an industry sector-specific standard?
Available Choices (select all choices that are correct)

• A. ISA-62443 (EC 62443)
• B. ISO 27001
• C. NIST SP800-82
• D. API 1164

Answer: D

NEW QUESTION # 48
The Risk Analysis category contains background information that is used where?
Available Choices (select all choices that are correct)

• A. Only the Assessment element
• B. Many other elements in the CSMS
• C. (Elements external to the CSMS
• D. Only the Risk ID element

Answer: D

NEW QUESTION # 49
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. FTP
• B. Web browser
• C. Remote desktop
• D. Vulnerability scanner

Answer: D

NEW QUESTION # 50
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. Software robustness security testing, functional software assessment assurance, and essential security
  functionality assessment
• D. Communication speed, disaster recovery, and essential security functionality assessment

Answer: B

NEW QUESTION # 51
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 a single master to communicate with multiple slaves usinq simple commands.
• B. Modbus uses explicit source and destination IP addresses and a sinqle known TCP port.
• C. Modbus has no known security vulnerabilities, so firewall rules are simple to implement.
• D. Modbus is a proprietary protocol that is widely supported by vendors.

Answer: B

NEW QUESTION # 52
Which activity is part of establishing policy, organization, and awareness?
Available Choices (select all choices that are correct)

• A. Communicate policies.
• B. Identify detailed vulnerabilities.
• C. Establish the risk tolerance.
• D. Implement countermeasures.

Answer: A

NEW QUESTION # 53
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. Regulations are voluntary documents.
• C. Regulations contain only informative elements.
• D. There are a limited number of enforced cybersecurity and physical security regulations.

Answer: D

NEW QUESTION # 54
Which organization manages the ISASecure conformance certification program?
Available Choices (select all choices that are correct)

• A. Security Compliance Institute
• B. Automation Federation
• C. American Society for Industrial Security
• D. National Institute of Standards and Technology

Answer: A

NEW QUESTION # 55
Which of the following attacks relies on a human weakness to succeed?
Available Choices (select all choices that are correct)

• A. Phishing
• B. Escalation-of-privileges
• C. Spoofing
• D. Denial-of-service

Answer: A

NEW QUESTION # 56
Multiuser accounts and shared passwords inherently carry which of the followinq risks?
Available Choices (select all choices that are correct)

• A. Buffer overflow
• B. Race conditions
• C. Privilege escalation
• D. Unauthorized access

Answer: C

NEW QUESTION # 57
Which steps are part of implementing countermeasures?
Available Choices (select all choices that are correct)

• A. Select common countermeasures and update the business continuity plan.
• B. Select common countermeasures and collaborate with stakeholders.
• C. Establish the risk tolerance and update the business continuity plan.
• D. Establish the risk tolerance and select common countermeasures.

Answer: D

NEW QUESTION # 58
In which layer is the physical address assigned?
Available Choices (select all choices that are correct)

• A. Layer 7
• B. Layer 3
• C. Layer 2
• D. Layer 1

Answer: C

NEW QUESTION # 59
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