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Secure Operating System

Covers operating system security principles including access control models (DAC, MAC, Bell-LaPadula, Biba), security policies, intrusion detection, firewall technologies, and security design principles like least privilege.

17 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

The combination of key exchange, hash and encryption algorithm defines a cipher suit in which of the following security mechanisms?

  1. Secure socket layer
  2. Transport layer security
  3. Personal firewall
  4. Sender authenticity
  5. Message integrity check
Question 2 Multiple Choice (Single Answer)

In which of the following security policies, there may also be some corporate-level responsibilities such as accounting and personnel activities?

  1. Military security policy
  2. Security policy
  3. Commercial security policy
  4. Lattice model of access security
  5. Transport layer security
Question 3 Multiple Choice (Single Answer)

In which of the following security models, users can also be ranked by the degree of information to which they can have access?

  1. Lattice model of access security
  2. Multilevel security
  3. Military security policy
  4. Personal firewall
  5. Security policy
Question 4 Multiple Choice (Single Answer)

The security policy implemented by which of the following security techniques is somewhat more complex than the action of a proxy?

  1. Personal firewall
  2. Transport layer security
  3. Non repudiation
  4. Military security policy
  5. Guard
Question 5 Multiple Choice (Single Answer)

In which of the following security policies, access is allowed if the object is requested in the same company group as an object that has been accessed previously?

  1. Military security policy
  2. Security policy
  3. Chinese wall security policy
  4. Lattice model of access security
  5. Transport layer security
Question 6 Multiple Choice (Single Answer)

In which of the following security features of a trusted operating system, the owner can determine who should have access rights to an object and what those rights should be?

  1. Mandatory access control
  2. Complete mediation
  3. Input validation control
  4. Discretionary access control
  5. Output reconciliation control
Question 7 Multiple Choice (Single Answer)

In which of the following security features of the operating system, access to the general objects must be controlled so that one user does not have a negative effect on other users?

  1. Authentication of users
  2. Allocation and access control
  3. Protection of memory
  4. Output reconciliation control
  5. Change management control
Question 8 Multiple Choice (Single Answer)

Which of the following security features of the operating system brings about the need to guarantee integrity and consistency?

  1. Authentication of users
  2. Enforcement of sharing
  3. File and I/O device access control
  4. Mandatory access control
  5. Complete mediation
Question 9 Multiple Choice (Single Answer)

Which of the following security models is to enable us to build systems with ability to execute parallel tasks with different levels of sensitivity?

  1. Network model
  2. Lattice model of access security
  3. Military security policy
  4. Bell-la padula confidentiality model
  5. Personal firewall
Question 10 Multiple Choice (Single Answer)

Which of the following security features of the operating system builds pattern of normal system usage and triggers an alarm any time the usage seems abnormal?

  1. Intrusion detection
  2. Object reuse protection
  3. Complete meditation
  4. Mandatory access control
  5. Protection of memory
Question 11 Multiple Choice (Single Answer)

Which of the following security techniques works on one packet at a time, allowing or denying each packet of information before moving on to the next one?

  1. Personal firewall
  2. Transport layer security
  3. Message integrity check
  4. Sender authentication
  5. Filtering firewall
Question 12 Multiple Choice (Single Answer)

Which of the following security models defines integrity levels which are analogous to the sensitivity levels of the Bell-la padula model?

  1. Lattice model of access security
  2. Network model
  3. Military security policy
  4. Biba integrity model
  5. Transport layer security
Question 13 Multiple Choice (Single Answer)

Which of the following features of the operating system is mediated by access control tables?

  1. Complete meditation
  2. File and I/O device access control
  3. Mandatory access control
  4. Inter crosses communication
  5. Authentication of users
Question 14 Multiple Choice (Single Answer)

In which of the following security techniques, a company wants to allow dial-in access by its employees, without exposing its company resources to login attacks from remote non-employees?

  1. Personal firewall
  2. Transport layer security
  3. Message integrity check
  4. Military security policy
  5. Application proxy
Question 15 Multiple Choice (Single Answer)

In which of the following principles applied in the design element of the operating system, each user and each program should operate by using the fewest privileges possible?

  1. Authentication of users
  2. Separation of privilege
  3. Ease of use
  4. File and I/O device access control
  5. Least privilege
Question 16 Multiple Choice (Single Answer)

In which of the following security techniques, packets can arrive in any order and the protocol suit is responsible for assembling the packet stream in proper order before passing it along the application?

  1. Message integrity check
  2. Personal firewall
  3. Stateful inspection firewall
  4. Transport layer security
  5. Mandatory access control
Question 17 Multiple Choice (Single Answer)

In which of the following security features of the operating system, a security-relevant action may be as simple as an individual access to an object such as file?

  1. Object reuse protection
  2. Complete mediation
  3. Accountability and audit
  4. Mandatory access control
  5. Ease of use
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