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| Section | Objectives |
|---|---|
| Introduction to Industrial Cybersecurity | - Overview of IT vs OT security concepts - Fundamentals of cybersecurity in industrial environments |
| Policies, Procedures, and Governance | - Security policies for industrial control systems - Compliance and governance considerations |
| ISA/IEC 62443 Framework Overview | - Structure and purpose of IEC 62443 standards - Key terminology and concepts (zones, conduits, security levels) |
| Industrial Network and System Security | - Asset identification and protection - Network segmentation and architecture security |
| Risk and Security Management | - Risk assessment principles - Security lifecycle management in industrial systems |
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NEW QUESTION # 88
What is the name of the missing layer in the Open Systems Interconnection (OSI) model shown below?
Answer: A
Explanation:
The OSI model defines 7 layers for standardizing communications in network systems. The Transport Layer is responsible for reliable data transfer between end systems, including flow control, error correction, and segmentation. It sits between the Network Layer and the Session Layer.
The correct OSI model from top to bottom is:
Application
Presentation
Session
Transport # Missing layer
Network
Data Link
Physical
"The transport layer provides transparent transfer of data between end users, ensuring complete data transfer."
- ISA/IEC 62443-3-3:2013, Annex A - Communications Stack and Layered Security Concepts Understanding the OSI model is crucial when designing secure industrial networks, as ISA/IEC 62443 advocates for layered defense ("defense in depth") at all levels.
References:
ISA/IEC 62443-3-3:2013 - Annex A
ISA/IEC 62443-1-1:2007 - Section on OSI Reference Model
NEW QUESTION # 89
Which of the following attacks relies on a human weakness to succeed?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
Phishing is a type of cyberattack that relies on a human weakness to succeed. Phishing is the practice of sending fraudulent emails or other messages that appear to come from a legitimate source, such as a bank, a government agency, or a trusted person, in order to trick the recipient into revealing sensitive information, such as passwords, credit card numbers, or personal details, or into clicking on malicious links or attachments that may install malware or ransomware on their devices. Phishing is a common and effective way of compromising the security of industrial automation and control systems (IACS), as it can bypass technical security measures by exploiting the human factor. Phishing can also be used to gain access to the IACS network, to conduct reconnaissance, to launch further attacks, or to cause damage or disruption to the IACS operations. The ISA/IEC 62443 series of standards recognize phishing as a potential threat vector for IACS and provide guidance and best practices on how to prevent, detect, and respond to phishing attacks. Some of the recommended countermeasures include:
* Educating and training the IACS staff on how to recognize and avoid phishing emails and messages, and how to report any suspicious or malicious activity.
* Implementing and enforcing policies and procedures for email and message security, such as using strong passwords, verifying the sender's identity, and not opening or clicking on unknown or unsolicited links or attachments.
* Applying technical security controls, such as antivirus software, firewalls, spam filters, encryption, and authentication, to protect the IACS devices and network from phishing attacks.
* Monitoring and auditing the IACS network and devices for any signs of phishing attacks, such as
* anomalous or unauthorized traffic, connections, or activities, and taking appropriate actions to contain and mitigate the impact of any incidents. References:
* ISA/IEC 62443-1-1:2009, Security for industrial automation and control systems - Part 1-1:
Terminology, concepts and models1
* ISA/IEC 62443-2-1:2009, Security for industrial automation and control systems - Part 2-1: Establishing an industrial automation and control systems security program2
* ISA/IEC 62443-2-4:2015, Security for industrial automation and control systems - Part 2-4: Security program requirements for IACS service providers3
* ISA/IEC 62443-3-3:2013, Security for industrial automation and control systems - Part 3-3: System security requirements and security levels4
* ISA/IEC 62443-4-2:2019, Security for industrial automation and control systems - Part 4-2: Technical security requirements for IACS components5
NEW QUESTION # 90
Which of the following is an industry sector-specific standard?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
API 1164 is an industry sector-specific standard that provides guidance on the cybersecurity of pipeline supervisory control and data acquisition (SCADA) systems. API stands for American Petroleum Institute, which is the largest U.S. trade association for the oil and natural gas industry. API 1164 was first published in
2004 and revised in 2009 and 2021. The latest version of the standard aligns with the ISA/IEC 62443 series of standards and incorporates the concepts of security levels, zones, and conduits. API 1164 covers the security lifecycle of pipeline SCADA systems, from risk assessment and policy development to implementation and maintenance. The standard also defines roles and responsibilities, security requirements, security controls, and security assessment methods for pipeline SCADA systems.
References:
API 1164: Pipeline SCADA Security, Fourth Edition, September 2021
ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section 2.2.2, Industry Sector-Specific Standards ISA/IEC 62443 Cybersecurity Fundamentals Specialist Exam Specification, Section 2.2.2, Industry Sector- Specific Standards
NEW QUESTION # 91
Which part of the ISA/IEC 62443 series describes a methodology to develop quantitative metrics?
Answer: D
Explanation:
ISA/IEC 62443-1-3 specifically provides guidance on developing quantitative metrics for evaluating the effectiveness of IACS security programs. This part introduces models and methods to create meaningful security program ratings, allowing organizations to quantitatively measure their security maturity and the effectiveness of security controls over time.
Reference: ISA/IEC 62443-1-3:2017, Introduction and Scope.
NEW QUESTION # 92
Which protocol is commonly used for managing the security of message transmission on the Internet via web browsers?
Answer: A
Explanation:
Transport Layer Security (TLS) is the primary cryptographic protocol used to secure web-based communications such as HTTPS in web browsers.
From ISA/IEC 62443-3-3 (System Security Requirements and Security Levels), Annex B:
"TLS provides confidentiality, integrity, and authentication for communications over untrusted networks. It is commonly used to secure HTTPS, SMTP, and other application protocols." TLS superseded SSL and is the backbone of secure data transmission over the Internet.
Incorrect Options:
B). L2TP - Used for VPNs; not typically browser-related.
C). PPTP - An older VPN protocol, not used for browser encryption.
D). IPsec - Used to secure IP traffic at the network layer; not directly used in browser-based communication.
References:
ISA/IEC 62443-3-3:2013 - "System Security Requirements and Security Levels" NIST SP 800-52 (supports use of TLS in government systems) ISA/IEC 62443 Study Guide
NEW QUESTION # 93
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