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CISSP Security Architecture And Design

Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. If an operating system permits executable objects to be used sequentially by multiple users without a refresh of the objects - what security problem is most likely to exist?






2. In the Bell-LaPadula Model the Object's Label contains ___________________.






3. The Policy must be explicit and well defined and enforced by the mechanisms within the system






4. Individual subjects must be uniquely identified.






5. A set of objects that a subject is able to access






6. Based on The Bell-LaPadula model - because it allows for multilevel security to be integrated into the code.






7. For a subject to have read access to an object in a Multi-Level Security Policy - it is necessary that the subject's sensitivity label must ____________________.

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8. Security Policies that prevent information from flowing from a higher security level to a lower security level are called ____________.






9. This type of environment is highly secured environment that processes very sensitive information. It requires systems that are highly resistant to penetration.






10. A form of ROM(Read-Only Memory) that can be modified after it has been manufactured. It can only be programmed only one time.






11. The Biba Model is not concerned with security levels and confidentiality. It uses _________________.






12. The centerpiece of the DoD Rainbow Series publications.Developed by the National Computer Security Center (NCSC)?






13. According to the Orange Book - which security level is the first to require a system to protect against covert timing channels?






14. The Red Book aka Trusted Network Interpretation (TNI) - provides _________________ for Trusted computer and communications network systems under the areas of assurance requirements






15. Developed after the Bell-LaPadula model. Its a state machine model and is very similar to the Bell-LaPadula Model.






16. A nonvolatile storage media etc computer hard drive - floppy disks and CD-ROMs






17. Users are trusted but a certain level of accountability is required. C2 over is seen as the most reasonable class for commmercial applications - but the level of protection is still relatively weak.






18. When a computer uses more than one CPU in parallel to execute instructions is known as?






19. In an automated system ________________ could be achieved by: A computer system designed to identify individuals responsible for any input.






20. TCSEC provides a means to evaluate ______________________.






21. A system uses the Reference Monitor to ___________________ of a subject and an object?






22. Access control labels must be associated properly with objects.






23. The hardware - firmware and software elements of a trusted computing base that implement the reference monitor concept.






24. The Biba model (introduced in 1977) - The Sutherland model (published in 1986) - The Brewer-Nash model (published in 1989)






25. If a system initializes in a secure state and all allowed state transitions are secure - the every subsequent state will be secure no matter what inputs occur.






26. Ssoftware that is stored within ROM (Read-Only Memory) - (ROM is nonvolatile)






27. What does the Clark-Wilson security model focus on






28. What is defined as the hardware - firmware and software elements of a trusted computing base that implement the reference monitor concept?






29. The Security Model Incorporates the ____________ that should be enforced in the system.






30. There is only only one class in Division D. Reserved for systems that have been evaluated but fail to meet the criteria and requirements of the higher divisions.






31. What does the simple security (ss) property mean in the Bell-LaPadula model?






32. This class ("Structured Protection") requires more stringent authentication mechanisms and well-defined interfaces between layers. Subjects and devices require labels and the system must not allow covert channels.






33. Simpler instructions that require fewer clock cycles to execute.






34. In B1 the security policy is based on Informal statement and the design specifications are reviewed and verified where as in B2 the ___________________ - and the system design and implementation are subject to more thorough review and testing procedu






35. Discretionary access control is based on individuals and/or groups. It requires a separation of users and information and identification and authentication of individual entities






36. The total combination of protection mechanisms within a computer system






37. What model use an access control triples and requires that the system maintain separation of duty ?






38. Which is a straightforward approach that provides access rights to subjects for objects?






39. Verification Protection






40. Based on a known address with an offset value applied.






41. Ensuring thta information does not flow from a higher security lever to a lower level in the Bell-LaPadula Model is referred to as ___________________ - which would take place through a "write down" operation. (An actual compromise occurs if and when






42. The reference monitor is an access control concept - Referring to ________________ that mediates all accesses to objects by subjects based on information in an access control database.






43. Which computer design approaches is based on the fact that in earlier technologies - the instruction fetch was the longest part of the cycle






44. An abstract machine which must mediate all access to subjects to objects - be protected from modification - be verifiable as correct - and is always invoked






45. Which describe a condition when RAM and Secondary storage are used together?






46. Mandatory Protection






47. A type of memory used for High-speed writing and reading activities.






48. The Orange Book describes four hierarchical levels to categorize security systems. Which levels require mandatory protection?






49. The *-Property rule is refered to as ____________.






50. Execute one instruction at a time.







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