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Test your basic knowledge |
CISSP Security Architecture And Design
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Subjects
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certifications
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it-skills
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cissp
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
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. Software - hardware and firmware must be able to be tested individually to ensure that each enforces the security policy in an effective manner throughout their lifetimes.
B3
Orange Book - B1
No read down
Life-cycle assurance - O/B
2. An abstract machine which must mediate all access to subjects to objects - be protected from modification - be verifiable as correct - and is always invoked
Discretionary Security Property (ds-property)
Complex Instruction Set Computers (CISC)
The reference monitor
Mandatory Access Control (MAC)
3. Reference Monitor is responsible for ______________ it compares the security labels of a subject and an object
Polyinstantiation
Division B - Mandatory Protection Architecture
Access control to the objects by the subjects
Trusted hardware - Software and Firmware
4. In an automated system ________________ could be achieved by: A computer system designed to identify individuals responsible for any input.
Security mechanisms and evalautes their effectivenes
Access control to the objects by the subjects
attributability
International Standard 15408
5. The Biba Model is not concerned with security levels and confidentiality. It uses _________________.
Life-cycle assurance - O/B
Identification - Orange Book
A lattice of Intergrity Levels
Secondary Storage
6. System Architecture that separates system functionality into Hierarchical layers
Most commonly used approach
A Layered Operating System Architecure
Need-to-know
Multitasking
7. B3 is also called "Security Domains" and imposes more granularity in each protection mechanism.
Examples of Layered Operating Systems
B1 - Labeled Security rating
Orange Book - B3
Sensitivity labels
8. What does the * (star) property mean in the Bell-LaPadula model?
All Mandatory Access Control (MAC) systems
Orange Book A
Compare the security labels
No write down
9. 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
Examples of Layered Operating Systems
Erasable and Programmable Read-Only Memory (EPROM)
Controlling unauthorized downgrading of information
The Rule is talking about writing
10. Documentation must be provided - including test - design - and specification document - user guides and manuals
A Layered Operating System Architecure
No read up
First evaluation class
Documentation - Orange Book
11. Which describe a condition when RAM and Secondary storage are used together?
Security mechanisms and evalautes their effectivenes
Buffer overflows
Virtual storage
Clark-Wilson
12. Bell-LaPadula Model - ____________ : A subject at a given security level can NOT READ data that reside at a higher security level.
Absolute addresses
The Simple Security Property
Simple Security Rule
Covert channels
13. When a vendor submits a product for evaluation - it submits it to the ____________.
The Evaluated Products List (EPL) with their corresponding rating
Life-cycle assurance - O/B
Orange Book B
The National Computer Security Center (NCSC)
14. 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?
*-Integrity Axiom
Disclosure of residual data
Subject to Object Model
Administrative declaration
15. In both the Bell-LaPadula and Biba Models if the word "Simple is used ______________.
An abstract machine
The rule is talking about "Reading"
The reference monitor
Multitasking
16. What is defined as the hardware - firmware and software elements of a trusted computing base that implement the reference monitor concept?
A security kernel
Virtual storage
No read down
The Clark Wilson integrity model
17. A Policy based control. All objects and systems have a sensitivity level assigned to them
First evaluation class
Mandatory Access Control (MAC)
State machine model
A Layered Operating System Architecure
18. 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
TCB (Trusted Computing Base)
The security perimeter
Ring 3
Security Policy is clearly defined and documented
19. Configuration management is also defined in the Orange Book BUT As a _____________________ and NOT an operational assurance requirement.
Life Cycle Assurance Requirement
Overt channel
Ring 2
The "No read Up" rule
20. 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
B2 rating
B2 - Structured Protection
Execution Domain
Indirect addressing
21. Mediates all access and Functions between subjects and objects.
Security rating B
Simple Security Rule
The Security Kernel
Trusted Products Evaluation Program (TPEP)
22. The Bell-LaPadula Model is a _______________ that enforces Confidentiality aspect of access control. Formed by David Bell and Leonard LaPadula.
The Trusted Computing Base (TCB)
Cache Memory
Examples of Layered Operating Systems
State machine model
23. 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.
Orange Book - B1
Trusted Products Evaluation Program (TPEP)
C2 - Controlled Access Protection
D
24. Operating System Kernel
The Security Kernel
Security Policy
Ring 0
Mandatory access control
25. Access control labels must be associated properly with objects.
B1 - Labeled Security
Examples of Layered Operating Systems
Labels - Orange Book
Compare the security labels
26. Which in the Orange Book ratings represents the highest level of trust?
security protection mechanisms
C1 - Discrection Security Protection is a type of environment
B2
International Standard 15408
27. The total combination of protection mechanisms within a computer system
Need-to-know
TCB (Trusted Computing Base)
Orange Book - B2
*-Integrity Axiom
28. Permits a database to have two records that are identical except for Their classifications
Polyinstantiation
B3 - Security Domains
The Tranqulity principle (The Bell-LaPadula Model)
Overt channel
29. TCSEC provides a means to evaluate ______________________.
The trustworthiness of an information system
The "No write Down" Rule
Security Policy is clearly defined and documented
Orange Book - A1
30. 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.
Totality of protection mechanisms
D
The security perimeter
B1 - Labeled Security rating
31. Which evaluation class of the Trusted Network Interpretation (TNI) offers security domains?
Subject to Object Model
Execution Domain
Dedicated Security Mode
B3
32. Can be erased - modified and upgraded.
Division B - Mandatory Protection
Erasable and Programmable Read-Only Memory (EPROM)
B3 - Rating
A single classification and a Compartment Set
33. The TCB is the ________________ within a computer system that work together to enforce a security policy.
Multitasking
Life Cycle Assurance Requirement
Totality of protection mechanisms
Polyinstantiation
34. The Indexed memory addresses that software uses
Be protected from modification
Swap Space
Logical addresses
D
35. The Biba Model - _____________: A subject cannot read data from a lower Integrity level " No Read Down"
Stored in Reak Memory
Logical addresses
Simple Integrity Axiom
TCB (Trusted Computing Base)
36. What does the simple security (ss) property mean in the Bell-LaPadula model?
Ring 1
Discretionary Security Property (ds-property)
Ring 0
No read up
37. What is called the formal acceptance of the adequacy of a system's overall security by management?
Disclosure of residual data
The *-Property rule (Star property)
Accreditation
Scalar processors
38. What prevents a process from accessing another process' data?
Process isolation
Indexed addressing
Accountability - Orange Book
Indirect addressing
39. Subjects and Objects cannot change their security levels once they have been instantiated (created)
Files - directories and devices
Direct Addressing
The "No read Up" rule
The Tranqulity principle (The Bell-LaPadula Model)
40. The process of Evaluating the security stance of the software or system against a selected set of standards or policies. This may precede accreditation but is not a required precursor.
Life-cycle assurance - O/B
Certification
D
C1
41. The reserved hard drive space used to Extend RAM capabilities. Windows system use the pagefile.sys file to reserve this space
Swap Space
B3 - Security Domains
Be protected from modification
Pipelining
42. Happen because input data is not checked for appropriate length at time of input
Firmware
C2 - Controlled Access Protection
Buffer overflows
B1 - Labeled Security
43. The subject must have Need to Know for ONLY the information they are trying to access.
B1 - Labeled Security
Absolute addresses
System High Security Mode
Dedicated Security Mode
44. Which integrity model defines a constrained data item - an integrity verification procedure and a transformation procedure?
The TCSEC - Aka Orange Book
B2
attributability
The Clark Wilson integrity model
45. In the Bell-LaPadula Model the Subject's Label contains ___________________.
Government and military applications
Certification
Its Clearance Label (Top Secret - Secret - or Confidential)
Logical addresses
46. Which computer design approaches is based on the fact that in earlier technologies - the instruction fetch was the longest part of the cycle
A1 - Rating
Complex Instruction Set Computers (CISC)
Files - directories and devices
The Evaluated Products List (EPL) with their corresponding rating
47. A logical form of separation used by secure computing systems - Processes are _____________ so that each cannot access objects outside its permitted domain
Orange Book B
Ring 3
Constrained
Orange Book interpretations
48. A is a form of EPROM - but its data storage can be erased and modified electrically by onboard programming circuitry and signals.
Electrically Erasable and Programmable Read-Only Memory (EEPROM)
A and B
Security Policy
B2 rating
49. Discretionary protection
Trusted Network Interpretation (TNI)
Operational assurance requirements
A1 - Rating
Orange Book C
50. The centerpiece of the DoD Rainbow Series publications.Developed by the National Computer Security Center (NCSC)?
Virtual Memory
The TCSEC - Aka Orange Book
Security mechanisms and evalautes their effectivenes
Life-cycle assurance - O/B