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Questions and Answers
What is the main focus of the OSI security architecture?
What is the main focus of the OSI security architecture?
- Providing entertainment services
- Dealing with security attacks, mechanisms, and services (correct)
- Enhancing system performance
- Preventing all types of threats
How are threats and attacks differentiated in the context of security?
How are threats and attacks differentiated in the context of security?
- Threats violate security policies, while attacks exploit vulnerabilities
- Threats exploit vulnerabilities, while attacks violate security policies (correct)
- Threats only target physical systems, while attacks target digital systems
- Threats are harmless, while attacks are malicious
Which of the following is NOT considered a security service provided by the OSI security architecture?
Which of the following is NOT considered a security service provided by the OSI security architecture?
- Data integrity
- Data confidentiality
- System overclocking (correct)
- Non-repudiation
What is the purpose of security mechanisms in the OSI security architecture?
What is the purpose of security mechanisms in the OSI security architecture?
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How do passive attacks differ from active attacks in terms of system interaction?
How do passive attacks differ from active attacks in terms of system interaction?
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Which of the following is included in the security mechanisms of the OSI security architecture?
Which of the following is included in the security mechanisms of the OSI security architecture?
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Study Notes
- The lecture is about the OSI security architecture.
- The learner will be able to understand the difference between threats and attacks, the OSI security architecture, and security attacks, mechanisms, and services.
- Threats are potential dangers that might exploit vulnerabilities, and attacks are deliberate attempts to evade security services and violate security policies.
- The OSI security architecture deals with three components: security attacks, security mechanisms, and security services.
- Security attacks compromise the security of a system.
- Security mechanisms are used to detect, prevent, or recover from security attacks.
- Security services enhance the security of a system and counter security attacks, providing various services such as authentication, access control, data confidentiality, data integrity, and non-repudiation.
- Security attacks can be passive or active.
- Passive attacks do not require direct interaction with the system, while active attacks do.
- Security mechanisms include encryption, digital signatures, access control, data integrity, authentication, exchange traffic padding, routing control, and notarization.
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