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CISSP Security Architecture And Design

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  • Answer 50 questions in 15 minutes.
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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. Bell-LaPadula Model -______________: A subject in a given security level can NOT WRITE information to a LOWER security level.






2. 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.






3. A process that resides in a privileged domain to be able to execute its instructions and process its data with the assurance that programs in a different domain can NOT negatively affect its environment.






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






5. Individual subjects must be uniquely identified.






6. Remaining parts of the operating system






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






8. For rhe type of environment that processes sensitive data that require a higher degree of security. It requires systems that are relatively resistant to peneration and compromise






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






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






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






12. Which can be used as a covert channel?






13. Discretionary protection






14. Applications and user activity






15. Buffer overflows occurs when a program or process tries to store more data in a _____________ than it was intended to hold.






16. Certification is a Technical review that assesses the _____________ - where as Accreditation is management's Official acceptance of the information in the Certification process findings.






17. 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?






18. In Access Control terms it means to be higher than or equal to. In the Bell-Lapadula Model - this is refered to as the dominance relation - which is the relationship of the subject's clearance to the object's classification

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19. B1 is also called "Labeled Security" and each data object must have a classification label and each subject a clearance label. On each access attempt - the classification and clearance are checked to verify that the access is permissible.






20. Mediates all access and Functions between subjects and objects.






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






22. What prevents a process from accessing another process' data?






23. As per FDA data should be ______________________________.






24. According to the Orange Book - trusted facility management is not required for which security levels?






25. The object reuse concept must also be invoked - meaning that any medium holding data must not contain any remnants of information after it is released for another subject to use. All data must be efficiently erased once the subject is doen with the m






26. The total(sum)combination of protection mechanisms within a computer system. The TCB includes hardware - software - and firmware.






27. The Biba Model - ______________: A Subject cannot write data to an object at a higher integrity level (No write Up)






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






29. In which users are processing information at the same sensitivity level; thus - strict access control and auditing measures are not required. It would be a trusted envirnment with low security concerns.






30. Which in the Orange Book ratings represents the highest level of trust?






31. In B2 Subjects and devices requre labels and the system must NOT allow ________. No Trapdoors exists.






32. Happen because input data is not checked for appropriate length at time of input






33. 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.






34. Execute one instruction at a time.






35. Bell-LaPadula Model - ______________: A subject that has read and write capabilities can only perform those functions at the same security level - nothing higher and nothing lower.






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






37. Accreditation is the authorization by management to _____________________. This authorization may be either provisional or full.






38. In access control terms - the word "dominate" refers to ___________.






39. A domain of trust that shares a single security policy and single management






40. The security kernel is the mechanism that _____________ of the reference monitor concept.






41. Which Orange Book evaluation level is described as "Verified Design"?






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






43. Which TCSEC level first addresses object reuse?






44. The reserved hard drive space used to Extend RAM capabilities. Windows system use the pagefile.sys file to reserve this space






45. I/O drivers and utilities






46. Permits a database to have two records that are identical except for Their classifications






47. The reference monitor must mediate all access - _____________ - be verifiable as correct - and must always be invoked.






48. A channel within a computer system or network that is designed for the authorized transfer of information is identified as a(n)?






49. Bell-LaPadula - ______________: This rule is based on named subjects and objects. It specifies that specific permissions allow a subject to pass on permissions to pass on permissions at its own discretion. These permissions are stored in an access ma






50. Which uses Protection Profiles and Security Targets?







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