ISA-IEC-62443 PrüfungGuide, ISA ISA-IEC-62443 Zertifikat - ISA/IEC 62443 Cybersecurity Fundamentals Specialist

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ISA/IEC 62443 Cybersecurity Fundamentals Specialist ISA-IEC-62443 Prüfungsfragen mit Lösungen (Q39-Q44):

39. Frage
Which of the following is a cause for the increase in attacks on IACS?
Available Choices (select all choices that are correct)

A. The move away from commercial off the shelf (COTS) systems, protocols, and networks
B. Fewer personnel with system knowledge having access to IACS
C. Knowledge of exploits and tools readily available on the Internet
D. Use of proprietary communications protocols

Antwort: C,D

Begründung:
One of the reasons for the increase in attacks on IACS is the availability of information and tools that can be used to exploit vulnerabilities in these systems. The Internet provides a platform for hackers, researchers, and activists to share their knowledge and techniques for compromising IACS. Some examples of such information and tools are:
* Stuxnet: A sophisticated malware that targeted the Iranian nuclear program in 2010. It exploited four zero-day vulnerabilities in Windows and Siemens software to infect and manipulate the programmable logic controllers (PLCs) that controlled the centrifuges. Stuxnet was widely analyzed and reported by the media and security experts, and its source code was leaked online1.
* Metasploit: A popular penetration testing framework that contains modules for exploiting various IACS components and protocols. For instance, Metasploit includes modules for attacking Modbus, DNP3, OPC, and Siemens S7 devices2.
* Shodan: A search engine that allows users to find devices connected to the Internet, such as webcams, routers, printers, and IACS components. Shodan can reveal the location, model, firmware, and
* configuration of these devices, which can be used by attackers to identify potential targets and vulnerabilities3.
* ICS-CERT: A website that provides alerts, advisories, and reports on IACS security issues and incidents. ICS-CERT also publishes vulnerability notes and mitigation recommendations for various IACS products and vendors4. These sources of information and tools can be useful for legitimate purposes, such as security testing, research, and education, but they can also be misused by malicious actors who want to disrupt, damage, or steal from IACS. Therefore, IACS owners and operators should be aware of the threats and risks posed by the Internet and implement appropriate security measures to protect their systems. References:
* The increase in attacks on Industrial Automation and Control Systems (IACS) can be attributed to several factors, including: A.Use of proprietary communications protocols:These can pose security risks because they may not have been designed with security in mind and are often not as well-tested against security threats as more standard protocols. C.Knowledge of exploits and tools readily available on the Internet:The availability of information about vulnerabilities and exploits on the internet has made it easier for attackers to target IACS.
* The other options, B and D, are incorrect because: B. The move towards commercial off-the-shelf (COTS) systems, protocols, and networks actually increases risk because these systems are more likely to be known and targeted by attackers, compared to proprietary systems which might benefit from security through obscurity. D. There is actually an increase in risk with more personnel with system knowledge because it enlarges the attack surface - each individual with system knowledge can potentially become a vector for an attack, either maliciously or accidentally.

40. Frage
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 architecture
B. Reference model
C. Zone model
D. Asset model

Antwort: B

41. Frage
Which of the following refers to internal rules that govern how an organization protects critical system resources?
Available Choices (select all choices that are correct)

A. Legislation
B. Formal guidance
C. Security policy
D- Code of conduct

Antwort: C

Begründung:
A security policy refers to internal rules that govern how an organization protects critical system resources, such as industrial control systems (ICS). A security policy defines the objectives, scope, roles, responsibilities, and requirements for securing the ICS environment, as well as the procedures and guidelines for implementing, monitoring, and enforcing the security measures. A security policy also establishes the baseline for assessing and managing the security risks to the ICS, and for ensuring compliance with relevant standards, regulations, and best practices. A security policy is a key component of the ICS security program, and it should be documented, communicated, and reviewed regularly.
The other choices are not correct because:
* A. Formal guidance. Formal guidance refers to external sources of information and recommendations that can help an organization improve its ICS security posture, such as standards, frameworks, guidelines, and best practices. Formal guidance is not an internal rule, but rather a reference that can be used to develop, implement, and evaluate the security policy and controls. For example, the ISA/IEC
62443 series of standards provide formal guidance on how to secure ICS from cyber threats1.
* B. Legislation. Legislation refers to external laws and regulations that impose legal obligations and penalties on an organization for its ICS security performance, such as the NERC CIP standards for the electric sector2, or the EU NIS Directive for critical infrastructure operators3. Legislation is not an internal rule, but rather a compliance requirement that must be met by the organization. Legislation may also influence the security policy and controls, as the organization needs to align its security objectives and practices with the legal expectations and consequences.
* D. Code of conduct. A code of conduct refers to a set of ethical principles and values that guide the
* behavior and decision-making of an organization and its employees, such as honesty, integrity, respect, and accountability. A code of conduct is not an internal rule for protecting critical system resources, but rather a general norm for conducting business and maintaining a positive reputation. A code of conduct may also support the security policy and culture, as it can foster a sense of responsibility and trust among the ICS stakeholders.
References:
* 1: ISA/IEC 62443 Standards to Secure Your Industrial Control System
* 2: NERC Critical Infrastructure Protection Standards
* 3: EU Network and Information Systems Directive

42. Frage
Which factor drives the selection of countermeasures?
Available Choices (select all choices that are correct)

A. Foundational requirements
B. Security levels
C. System design
D. Output from a risk assessment

Antwort: D

43. Frage
Which type of cryptographic algorithms requires more than one key?
Available Choices (select all choices that are correct)

A. Asymmetric (public) key
B. Symmetric (private) key
C. Stream ciphers
D. Block ciphers

Antwort: A

Begründung:
Asymmetric (public) key algorithms are a type of cryptographic algorithms that require more than one key. Asymmetric key algorithms use a pair of keys, one for encryption and one for decryption, that are mathematically related but not identical1. The encryption key is usually made public, while the decryption key is kept private. This allows anyone to encrypt a message using the public key, but only the intendedrecipient can decrypt it using the private key1. Asymmetric key algorithms are also known as public key algorithms or public key cryptography1. Asymmetric key algorithms are used for various purposes, such as digital signatures, key exchange, and encryption2. Some examples of asymmetric key algorithms are RSA, Diffie-Hellman, ElGamal, and Elliptic Curve Cryptography2.
References: Asymmetric Algorithm or Public Key Cryptography - IBM, Cryptography 101: Key Principles, Major Types, Use Cases & Algorithms | Splunk.

44. Frage
......

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Es ist anerkannt, dass es zurzeit auf dem Markt nur begrenzte Lernmaterialien für IT-Mitarbeiter gibt, Wie kann man die ISA-IEC-62443 Zertifizierung bekommen und sich in der Branche qualifizierter machen?

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Ed Long Ed Long

Biography

ISA-IEC-62443 PrüfungGuide, ISA ISA-IEC-62443 Zertifikat - ISA/IEC 62443 Cybersecurity Fundamentals Specialist

ISA-IEC-62443 Zertifizierungsfragen, ISA-IEC-62443 Zertifikatsfragen

ISA/IEC 62443 Cybersecurity Fundamentals Specialist ISA-IEC-62443 Prüfungsfragen mit Lösungen (Q39-Q44):

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