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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. Which integrity model defines a constrained data item - an integrity verification procedure and a transformation procedure?






3. The Bell-LaPadula model Subjects and Objects are ___________.






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






5. 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.






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






7. Which can be used as a covert channel?






8. Reference Monitor is responsible for ______________ it compares the security labels of a subject and an object






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






10. B3 is also called "Security Domains" and imposes more granularity in each protection mechanism.






11. What is called the formal acceptance of the adequacy of a system's overall security by management?






12. Which uses Protection Profiles and Security Targets?






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






14. A logical form of separation used by secure computing systems - Processes are _____________ so that each cannot access objects outside its permitted domain






15. Bell-LaPadula model was proposed for enforcing access control in _____________________.






16. Succesfully Evaluated products are placed on?






17. Levels of Security and Levels of Trust Lower Letters of the alphabet represent higher levels of security. Higher numbers indicate a greater level of trust.






18. The Simple Security rule is refered to as______________.






19. Configuration management is also defined in the Orange Book BUT As a _____________________ and NOT an operational assurance requirement.






20. A ring protection system ________: User mode programs from direct access to peripherals and requires them to make use of services running at more privileged levels.






21. Each data object must contain a classification label and each subject must have a clearance label.






22. 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






23. Which Orange Book evaluation level is described as "Discretionary Security Protection"?






24. Which is an ISO standard product evaluation criteria that supersedes several different criteria






25. Has two individual assurace ratings. C1 and C2. The Higher the number of assurance rating the greater the protection






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






27. When the RAM and secondary storage are combined the result is __________.






28. Execute one instruction at a time.






29. Operating System Kernel






30. Used by Windows systems to reserve the "Swap Space"






31. Bell-LaPadula Model - ____________ : A subject at a given security level can NOT READ data that reside at a higher security level.






32. The Reserved hard drive space used to to extend RAM capabilites.






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






34. The Biba Model - ______________: A subject cannot request service (invoke) to subjects of higher integrity






35. The security mechanisms and the system as a whole must perform predictably and acceptably in different situations continuously.






36. 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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37. The reference monitor - in accordance with the security policy - ____________ that are made in the access control database.






38. The first mathematical model of a multi-level security policy used to define the concept of a secure state - the modes of access - and rules for granting access?






39. An organization within the National Security Agency (NSA) is responsible for Evaluating computer systems and products. The Trusted Product Evaluation program (TPEP) oversees the testing by approved entities of commercial products against a specific s






40. Components considered as part of the Trusted Computing Base (from the Orange Book) are?






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






42. In ______________ the subject must have: Need to Know for ALL the information contained within the system.






43. The group that oversees the processes of evaluation within TCSEC is?






44. Which evaluation class of the Trusted Network Interpretation (TNI) offers security domains?






45. Includes the security kernel as well as other security-related system functions that are within the boundary of the trusted computing base. System elements that are outside of the security perimeter need not be trusted.






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






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






48. 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






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






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







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