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1. Assume a system enforces both the BLP and Biba properties. For BLP that means read down/write up only and for Biba it means read up/write down only. Assume also that two models use identical levels for both security and integrity
SL = security clearance for level L = integrity clearance for level LSC = security category set for cat. C = integrity category set for cat C. Prove that in this system a subject can only read and write at his own level
2.a.In Lipner's model consider moving a program from development into production. What are the starting and ending security and integrity levels of this object
2b. Who in Lipner's model can make this change?
2c. Explain the reads and writes necessary to make this change and justify the read and write using Lipner's matrix.
Use search engine to determine the example of Web page which makes effective and consistent use of headings to organize Web page content.
Think of numerous cases where evidence could potentially be tampered with a cell phone or thumb drive. What can go wrong?
You visit retail establishment, shop around, and ultimately carry several products to one of the point of sale. Document each main events just explained and describe them in terms of PCI compliance standard.
Does Facebook and Google use same database system? Facebook seems to run with the android platform using gmail address to retain information for user such as phone numbers and contacts.
Using three components of information systems and complementary assets concepts, explain why some companies achieve better results with information systems than others.
Suppose we have training data from a Gaussian distribution of known covariance S but unknown mean Mu.
In an age of virtual worlds where people are spending inordinate amounts. Are we voluntarily gravitating to this world and giving up our real world experiences for virtual ones?
Determine selection inputs are required if you used MUX A and MUX B system?
Can you suggest a way to roughly find out the web servers (outside your department) which are not popular among the users in the department? Describe.
Assume that the initial value of R3 is R2 + 496. Use the classic five-stage RISC integer pipeline and assume all memory accesses take 1 clock cycle.
Draw a sequence diagram for the following use case. Draw only the first five messages sent. The FieldOfficer activates the "Report Emergency" function of her terminal. The system responds by presenting a form to the officer.
For some time, popular music has been distributed on physical CDs. It can now be distributed in MP3 files. Explain the nature of the similarity or difference.
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