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1. Give an example of the use of physical separation for security in a computing environment.
2. Give an example of an object whose security level may change during execution.
3. A directory is also an object to which access should be controlled. Why is it not appropriate to allow users to modify their own directories?
4. Suggest an efficient scheme for maintaining a per-user protection scheme. That is, the system maintains one directory per user, and that directory lists all the objects to which the user is allowed access. Your design should address the needs of a system with 1000 users, of whom no more than 20 are active at any time. Each user has an average of 200 permitted objects; there are 50,000 total objects in the system.
Suppose after submitting your sealed bid in a Vickery austion you find out that they have lost the auction(you were not the highest bidder); However, you have the opportunity to revise your bid. Would you go ahead and change your bid
Potatoes cost Janice $1.10 per pound, and she has $5.00 that she could possibly spend on potatoes or other items. If she feels that the first pound of potatoes is worth $1.50, the second pound is worth $1.14
The mean time an American family lives in a particular single-family dwelling is 11.8 years. A sample of 100 families in the Sycamore, OK area shows the mean time living in a single family residence is 12.7 years. Can we conclude that the time peo..
Discuss why the number of children that a family has may differ between an Industrial Society and a Third World Agrarian Society.
For a developing country to increase, it needs capital. The major source of capital in most nations is domestic saving, but the target of stimulating domestic saving usually is in conflict with the government policies targeted at decreasing inequalit..
Discuss why the government would implement a program to lower the price of a good and the welfare effects of such a program. Give an example of good for which such a policy has been implemented and explain the purpose of the policy.
Some states are required to balance their budgets. Is this measure stabilizing or destabilizing Suppose all states were committed to a balanced budget philosophy and the economy moved into a recession. What effects would this philosophy have on th..
Increase the level of the activity if its marginal benefit exceeds its marginal cost, but reduce the level if the marginal cost exceeds the marginal benefit. Why is the level where marginal benefit equals marginal cost considered maximum satisfact..
How Might pressures felt by college-bound high school students to participate in academic related organizations and activities contribute to a lower teen labor force participation rate Why are people receiving disability benefits not counted as par..
What method helped to create two important fields: general equilibrium theory and econometrics?
What is the thinking for revitalizing the burnt area? What should there be done such as replanting saplings, seed, or just let nature take its course?
The Fed sells $100,000 in Treasury Bonds to Chase Bank in the secondary market. a) What happens to the monetary base as a result b) If the reserve requirement is 20%, c=0.5 and e=0.001, what happens to the money supply as a result
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