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Free SSCP Exam Braindumps (page: 42)

Page 42 of 269
PDF with 1074 Questions

What does the (star) property mean in the Bell-LaPadula model?

  1. No write up
  2. No read up
  3. No write down
  4. No read down

Answer(s): C

Explanation:

The (star) property of the Bell-LaPadula access control model states that writing of information by a subject at a higher level of sensitivity to an object at a lower level of sensitivity is not permitted (no write down).


Reference:

KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, John Wiley & Sons, 2001, Chapter 5: Security Architectures and Models (page 202).
Also check out: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw- Hill/Osborne, 2002, Chapter 5: Security Models and Architecture (page 242, 243).



What does the (star) integrity axiom mean in the Biba model?

  1. No read up
  2. No write down
  3. No read down
  4. No write up

Answer(s): D

Explanation:

The (star) integrity axiom of the Biba access control model states that an object at one level of integrity is not permitted to modify an object of a higher level of integrity (no write up).


Reference:

KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, John Wiley & Sons, 2001, Chapter 5: Security Architectures and Models (page 205).



What does the simple integrity axiom mean in the Biba model?

  1. No write down
  2. No read down
  3. No read up
  4. No write up

Answer(s): B

Explanation:

The simple integrity axiom of the Biba access control model states that a subject at one level of integrity is not permitted to observe an object of a lower integrity (no read down).


Reference:

KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, John Wiley & Sons, 2001, Chapter 5: Security Architectures and Models (page 205).



What is the Biba security model concerned with?

  1. Confidentiality
  2. Reliability
  3. Availability
  4. Integrity

Answer(s): D

Explanation:

The Biba security model addresses the integrity of data being threatened when subjects at lower security levels are able to write to objects at higher security levels and when subjects can read data at lower levels.


Reference:

HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne, 2002, Chapter 5: Security Models and Architecture (Page 244).



Page 42 of 269



Post your Comments and Discuss ISC SSCP exam with other Community members:

Jack commented on October 03, 2024
are these still legit?
Anonymous
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Anil commented on February 13, 2024
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CANADA
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France
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Anonymous
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anyone actually used only this recently and can verify that the majority of these questions were on their exam
UNITED STATES
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POLAND
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UNITED STATES
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THAILAND
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Paratik-2000 commented on June 13, 2022
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CANADA
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BanglaBoi commented on January 11, 2015
1074 Questions, should be fine for mock test, will report back once I take the actual exam.
UNITED KINGDOM
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