Security Concepts and Principles

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Questions and Answers

What are the primary goals and objectives of a security infrastructure?

  • Authentication, encryption, and authorization
  • Integrity, authorization, and disclosure
  • Secrecy, protection, and disclosure
  • Confidentiality, integrity, and availability (correct)

Which principle of the CIA Triad focuses on the protection of the secrecy of data?

  • Confidentiality (correct)
  • Authorization
  • Availability
  • Integrity

How are security controls typically evaluated?

  • Based on how well they address the CIA Triad principles (correct)
  • Based on the number of employees in an organization
  • Based on their physical size
  • Based on their cost-effectiveness

What is the main goal of confidentiality protection?

<p>Prevent unauthorized access to data (D)</p> Signup and view all the answers

What are some common causes of unauthorized disclosure of sensitive information?

<p>Human error, oversight, or ineptitude (D)</p> Signup and view all the answers

In the CIA Triad, which principle focuses on ensuring authorized access to data?

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

What is one of the main aspects of availability mentioned in the text?

<p>Ensuring authorized access and acceptable performance (A)</p> Signup and view all the answers

Which of the following is NOT listed as a threat to availability in the text?

<p>Sophisticated hacking attacks (C)</p> Signup and view all the answers

What is a crucial control measure needed to maintain availability on a system?

<p>Ensuring redundancy for critical systems (D)</p> Signup and view all the answers

What type of attacks focus on violating availability, as mentioned in the text?

<p>Denial-of-Service (DoS) attacks (B)</p> Signup and view all the answers

Which of the following is NOT a recommended countermeasure to ensure availability according to the text?

<p>Disabling access controls for easier user access (C)</p> Signup and view all the answers

What can cause many availability breaches according to the text?

<p>Human error, oversight, or ineptitude (B)</p> Signup and view all the answers

What does nonrepudiation prevent a subject from claiming?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following is not one of the three As in AAA services?

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

What is a core security mechanism of all security environments?

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

What process involves proving that you are the claimed identity?

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

Which element of nonrepudiation is essential for holding a suspect accountable?

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

How many elements are actually represented by the three As in AAA services?

<p>5 (C)</p> Signup and view all the answers

What is the most secure form of authentication?

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

Which concept involves using multiple security controls in a series?

<p>Defense in depth (D)</p> Signup and view all the answers

What is the primary advantage of using defense in depth for security?

<p>Protection against various threats (B)</p> Signup and view all the answers

Which mechanism involves performing security controls one after the other in a linear fashion?

<p>Defense in depth (A)</p> Signup and view all the answers

What does the use of multifactor authentication aim to prevent?

<p>Compromise of authentication process (A)</p> Signup and view all the answers

Which aspect ensures that a single failed control doesn't expose systems or data?

<p>Defense in depth (C)</p> Signup and view all the answers

What are the key aspects of availability?

<p>Usability, accessibility, and timeliness (D)</p> Signup and view all the answers

Which feature is essential for maintaining the availability of critical systems?

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

What does the DAD Triad consist of?

<p>Disclosure, alteration, and destruction (D)</p> Signup and view all the answers

What does the opposite of the CIA Triad represent?

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

Which factor is crucial in ensuring that the widest range of subjects can interact with a resource?

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

Which concept is vital when designing a security policy alongside the CIA Triad?

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

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