Accountability in OSI Security Architecture
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Questions and Answers

What is the primary purpose of maintaining records in a security system?

  • To ensure data integrity
  • To prevent security breaches
  • To support nonrepudiation and enable forensic analysis (correct)
  • To aid in data recovery

Which OSI security component focuses on protecting against security attacks?

  • Security architecture
  • Security protocols
  • Security services
  • Security mechanisms (correct)

What type of security attack involves monitoring or eavesdropping on transmissions?

  • Denial-of-Service Attack
  • Active Attack
  • Man-in-the-Middle Attack
  • Passive Attack (correct)

What are the two types of passive attacks mentioned in the text?

<p>Release of message contents and traffic analysis (D)</p> Signup and view all the answers

Which OSI security component is designed to counter security attacks?

<p>Security services (B)</p> Signup and view all the answers

What characteristic makes passive attacks particularly difficult to detect?

<p>They do not involve data alteration (D)</p> Signup and view all the answers

What type of attack involves the creation of a false data stream?

<p>Masquerade (A)</p> Signup and view all the answers

Which security mechanism involves transforming data into a non-readable form?

<p>Encipherment (C)</p> Signup and view all the answers

What security service assures that the communicating entity is who they claim to be?

<p>Authentication (B)</p> Signup and view all the answers

Which type of attack involves modifying the data stream?

<p>Modification of messages (D)</p> Signup and view all the answers

What is the purpose of digital signatures?

<p>Verifying data authenticity (A)</p> Signup and view all the answers

Which security service provides assurance about the source and integrity of data units?

<p>Data-Origin Authentication (C)</p> Signup and view all the answers

Which of the following best describes the concept of authenticity in cybersecurity?

<p>Confidence in the validity of a transmission, a message, or message originator, verifying that users and each input arriving at the system came from a trusted source. (C)</p> Signup and view all the answers

Which of the following is NOT a common security attack that affects authenticity?

<p>Denial-of-Service attack (A)</p> Signup and view all the answers

Which of the following best describes a man-in-the-middle attack on authenticity?

<p>An attacker intercepts and alters communication between two parties without their knowledge. (C)</p> Signup and view all the answers

Which of the following best describes a replay attack on authenticity?

<p>An attacker replays captured data transmission from an earlier exchange. (A)</p> Signup and view all the answers

Which of the following best describes a phishing attack on authenticity?

<p>An attacker deceives a victim into revealing sensitive information by posing as a trusted entity. (B)</p> Signup and view all the answers

Which of the following is the PRIMARY concern of a security attack that affects authenticity?

<p>Authenticity (B)</p> Signup and view all the answers

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