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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security Operations & Incident Response | 20% | - Incident handling and response processes - Monitoring, maintenance and continuous improvement - Cybersecurity Management System (CSMS) |
| Topic 2: Industrial Automation and Control Systems (IACS) Overview | 15% | - Cybersecurity importance in industrial environments - Differences between IT and OT security - IACS components, architectures and protocols |
| Topic 3: Industrial Network Security | 30% | - Industrial protocols security - Threats, vulnerabilities and risk assessment - Network segmentation and security architecture |
| Topic 4: Access Control & Identity Management | 15% | - User authentication and authorization - Security policies and procedures - Role-based access control |
| Topic 5: Security Fundamentals & ISA/IEC 62443 Framework | 20% | - Structure and parts of ISA/IEC 62443 standards - Zones and conduits model - Core security principles: CIA triad, defense-in-depth - Foundational security requirements |
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The ISA ISA-IEC-62443 certification exam syllabus is changing with the passage of time. As a ISA-IEC-62443 exam candidate you have to be aware of these ISA ISA-IEC-62443 exam changes. To give you complete knowledge about the ISA ISA-IEC-62443 Exam Topics, the PassReview has hired a team of experts that consistently work on these changes and add these changes in ISA ISA-IEC-62443 exam practice test questions.
NEW QUESTION # 130
If a U.S. federal agency must comply with mandatory cybersecurity requirements under law, which document would they be required to follow?
Answer: B
Explanation:
For U.S. federal agencies, mandatory cybersecurity requirements under law are established through Federal Information Processing Standards (FIPS). FIPS are issued by the U.S. government and are legally enforceable for federal agencies and contractors when specified by statute or regulation. This legal enforceability distinguishes FIPS from voluntary standards and frameworks.
Step 1: Understand the legal nature of FIPS
FIPS are developed under U.S. law to define minimum security requirements for federal information systems.
When a federal agency operates or procures information systems, compliance with applicable FIPS is mandatory. This makes FIPS a legal obligation rather than a best-practice recommendation.
Step 2: Differentiate standards vs regulations
ISA/IEC 62443 is an international consensus-based standard intended primarily for industrial automation and control systems. While widely adopted and referenced by regulators, it is not legally mandatory unless explicitly incorporated into law or contracts. Therefore, it does not satisfy the requirement "under law" by itself.
Step 3: Eliminate incorrect options
* The EU Cyber Resilience Act applies to products placed on the European Union market and has no jurisdiction over U.S. federal agencies.
* NIST SP 800-171 provides requirements for protecting Controlled Unclassified Information (CUI) in non-federal systems, but it becomes mandatory only through contractual flow-downs, not directly as federal law.
Step 4: Align with ISA/IEC 62443 perspective
ISA/IEC 62443 acknowledges that regulatory and legal obligations override voluntary standards. Asset owners must comply with applicable laws first, then apply ISA/IEC 62443 controls to meet industrial cybersecurity objectives.
Thus, for a U.S. federal agency facing mandatory cybersecurity requirements under law, NIST FIPS is the correct answer.
NEW QUESTION # 131
Which of the following attacks relies on a human weakness to succeed?
Available Choices (select all choices that are correct)
Answer: D
NEW QUESTION # 132
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)
Answer: C
NEW QUESTION # 133
Which of the following is a recommended default rule for IACS firewalls?
Available Choices (select all choices that are correct)
Answer: B
Explanation:
A recommended default rule for IACS firewalls is to block all traffic by default, and then allow only the necessary and authorized traffic based on the security policy and the zone and conduit model. This is also known as the principle of least privilege, which means granting the minimum access required for a legitimate purpose. Blocking all traffic by default provides a higher level of security and reduces the attack surface of the IACS network. The other choices are not recommended default rules for IACS firewalls, as they may expose the IACS network to unnecessary risks. Allowing all traffic by default would defeat the purpose of a firewall, as it would not filter any malicious or unwanted traffic. Allowing IACS devices to access the Internet would expose them to potential cyber threats, such as malware, phishing, or denial-of-service attacks.
Allowing traffic directly from the IACS network to the enterprise network would bypass the demilitarized zone (DMZ), which is a buffer zone that isolates the IACS network from the enterprise network and hosts services that need to communicate between them. References:
* ISA/IEC 62443 Standards to Secure Your Industrial Control System training course1
* ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide2
* Using the ISA/IEC 62443 Standard to Secure Your Control Systems3
NEW QUESTION # 134
What type of attack is characterized by encrypting an organization's data and demanding payment for restoration?
Answer: B
Explanation:
Ransomware is a type of malicious software (malware) designed to block access to a computer system or data, typically by encrypting files, until a sum of money (ransom) is paid. This form of attack is increasingly targeting industrial automation and control system (IACS) environments due to the critical nature of these systems. Unlike phishing (which tricks users into revealing sensitive information) or DDoS attacks (which disrupt availability), ransomware specifically encrypts data and extorts the victim.
Reference: ISA/IEC 62443-3-2:2020, Annex B; ISA/IEC 62443-1-1:2007, Section 3.2.2; ISA/IEC 62443-2-1:
2009, Section 4.2.3.
NEW QUESTION # 135
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