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| Section | Objectives |
|---|---|
| Addressing Risk with Security Policy, Organization, and Awareness | - Organizational security roles and responsibilities - Security awareness and training - Security policies and procedures |
| Validating or Verifying the Security of Systems | - Auditing and compliance - Security validation and verification techniques - Continuous improvement of security measures |
| Risk Analysis | - Risk and vulnerability analysis techniques - Cybersecurity risk assessment concepts - Risk management fundamentals |
| Creating A Security Program | - Defining information security policy - Security management organization - Developing a long-term security program |
| Addressing Risk with Selected Security Counter Measures | - Anti-virus and endpoint protection - Virtual Private Networks (VPNs) - Patch management - Firewalls and network security devices |
| Addressing Risk with Implementation Measures | - Industrial network architecture and segmentation - Defense-in-depth strategy - Access control principles - Zones and conduits model |
| Monitoring and Improving the CSMS | - Continuous monitoring of IACS cybersecurity - Security lifecycle management - Incident detection and response |
| How Cyberattacks Happen | - Cyber threats and attack vectors - Case studies of industrial cyber incidents - Vulnerabilities in industrial systems |
| Understanding the Current Industrial Security Environment | - Current state of industrial control systems security - Convergence of IT and OT - Security challenges in OT environments |
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NEW QUESTION # 21
What is a feature of an asymmetric key?
Available Choices (select all choices that are correct)
Answer: B
Explanation:
An asymmetric key is a feature of asymmetric cryptography, also known as public-key cryptography, which is a method of encrypting and decrypting data using two different keys: a public key and a private key. The public key can be shared with anyone, while the private key must be kept secret by the owner. The public key and the private key aremathematically related, but it is computationally infeasible to derive one from the other.
Asymmetric cryptography can be used for various purposes, such as digital signatures, key exchange, and encryption. For example, if Alice wants to send a message to Bob, she can use Bob's public key to encrypt the message, and only Bob can decrypt it using his private key. Alternatively, if Bob wants to prove that he is the author of a message, he can use his private key to sign the message, and anyone can verify it using his public key. Asymmetric cryptography has some advantages over symmetric cryptography, which uses the same key for both encryption and decryption. For instance, asymmetric cryptography does not require a secure channel to distribute the keys, and it can provide non-repudiation and authentication. However, asymmetric cryptography also has some drawbacks, such as higher computational complexity, larger key sizes, and higher network overhead.
References:
* ISA/IEC 62443-3-3:2018, Section 4.2.3.6.1, Cryptography1
* ISA/IEC 62443-4-2:2019, Section 4.2.3.6.1, Cryptography
* ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section 5.3.1, Cryptography
* ISA/IEC 62443 Cybersecurity Fundamentals Specialist Exam Specification, Section 5.3.1,
* Cryptography
NEW QUESTION # 22
If an industrial control system experiences frequent unexpected shutdowns causing downtime, which SP Element activities should be reviewed to improve system availability?
Answer: C
Explanation:
Frequent unexpected shutdowns relate directly to system availability and recoverability. According to ISA
/IEC 62443-2-1, SP Element 8 focuses on:
Backup procedures
Restoration processes
Business continuity in response to disruptions
"SP Element 8 addresses recovery and continuity controls such as backups, restoration testing, and fallback procedures that ensure timely recovery from outages or system failures."
- ISA/IEC 62443-2-1:2010, Clause 4.3.4 - SP Element 8
While SP Element 2 and 7 are also important, Element 8 is most directly relevant for ensuring rapid restoration of service after unexpected shutdowns.
References:
ISA/IEC 62443-2-1:2010 - SP Element 8
ISA/IEC 62443-1-1 - System availability principles
NEW QUESTION # 23
What is a commonly used protocol for managing secure data transmission over a Virtual Private Network (VPN)?
Available Choices (select all choices that are correct)
Answer: D
Explanation:
IPSec is a commonly used protocol for managing secure data transmission over a VPN. IPSec stands for Internet Protocol Security and it is a set of standards that define how to encrypt and authenticate data packets that travel between two or more devices over an IP network. IPSec can operate in two modes: transport mode and tunnel mode. In transport mode, IPSec only encrypts the payload of the IP packet, leaving the header intact. In tunnel mode, IPSec encrypts the entire IP packet and encapsulates it in a new IP header. Tunnel mode is more secure and more suitable for VPNs, as it can protect the original source and destination addresses of the IP packet from eavesdropping or spoofing. IPSec uses two main protocols to provide security services: Authentication Header (AH) and Encapsulating Security Payload (ESP). AH provides data integrity and source authentication, but not confidentiality. ESP provides data integrity, source authentication, and confidentiality. IPSec also uses two protocols to establish and manage security associations (SAs), which are the parameters and keys used for encryption and authentication: Internet Key Exchange (IKE) and Internet Security Association and Key Management Protocol (ISAKMP). IKE is a protocol that negotiates and exchanges cryptographic keys between two devices. ISAKMP is a protocol that defines the format and structure of the messages used for key exchange and SA management.
References:
ISA/IEC 62443-3-3:2018, Section 4.2.3.7.1, VPN1
ISA/IEC 62443-4-2:2019, Section 4.2.3.7.1, VPN
ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section 5.3.2, VPN ISA/IEC 62443 Cybersecurity Fundamentals Specialist Exam Specification, Section 5.3.2, VPN
NEW QUESTION # 24
Which of the following BEST describes a control system?
Answer: A
Explanation:
A control system, particularly in the context of IACS, is defined as a collection of hardware and software components used to monitor and control industrial processes. This includes PLCs, RTUs, SCADA software, HMIs, and communication networks.
"Control system: A set of hardware and software components that work together to monitor and control industrial or process operations."
- ISA/IEC 62443-1-1:2007, Clause 3.3.5 - Terminology
While the other options describe security functions or consequences, only Option C accurately describes what a control system is.
References:
ISA/IEC 62443-1-1:2007 - Clause 3.3.5
ISA/IEC 62443-2-1 - Asset definitions
NEW QUESTION # 25
What does the abbreviation CSMS round in ISA 62443-2-1 represent?
Available Choices (select all choices that are correct)
Answer: C
Explanation:
The abbreviation CSMS stands for Cyber Security Management System in ISA 62443-2-1. This standard defines the elements necessary to establish a CSMS for industrial automation and control systems (IACS) and provides guidance on how to develop those elements123. A CSMS is a collection of policies, procedures, practices, and personnel that are responsible for ensuring the security of IACS throughout their lifecycle24. References: 1: ISA/IEC 62443 Series of Standards - ISA 2: ISA 62443-2-1 - Security for industrial automation and control systems, Part 2-1: Establishing an Industrial Automation and Control Systems Security Program | GlobalSpec 3: IEC 62443-2-1:2010 | IEC Webstore | cyber security, smart city 4: Structuring the ISA/IEC 62443 Standards - ISAGCA
NEW QUESTION # 26
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