Computers and Technology, 09.10.2021 19:00 angel41583
%) In each of the following situations, specify what type of access (read, write, both, or neither) is allowed with Bell-LaPadula model. If the subject cannot read the object, then give one object classification that the subject can read. If the subject cannot write to the object, then give one object classification that the subject can write. (a) Paul, cleared for (Top secret, {A, C}), wants to access a document classified (secret, {B, C}). (b) Anna, cleared for (Confidential, {C}), wants to access a document classified (Confidential, {B}). (c) Jesse, cleared for (Secret, {C}), wants to access a document classified (Confidential, {C}). (d) Sammi, cleared for (Top secret, {A, C}), wants to access a document classified (Confidential, {A}). (e) Robin has no clearance, but wants to access a document classified (Confidential, {B}).
Answers: 2
Computers and Technology, 22.06.2019 06:00
Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health? a. air quality data gathered by new instruments can be used to reduce exposure to pollutants. b. new technologies enable natural and human-made pollution sources to be located and monitored. c. air quality data gathered by new instruments can be used to predict trends in pollution over time. d. new technologies allow governments to make informed decisions about the regulation of pollution. (choose more than one)
Answers: 2
Computers and Technology, 23.06.2019 10:20
Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?
Answers: 1
Computers and Technology, 23.06.2019 12:00
If you're using an existing powerpoint presentation that will receive new slides based on a word outline, select the a. slide that will appear after the new slides. b. first slide in the presentation. c. slide that will appear before the new slides. d. last slide in the presentation.
Answers: 2
Computers and Technology, 24.06.2019 02:20
Peter is thinking of a number which isless than 50. the number has 9 factors.when he adds 4 to the number, itbecomes a multiple of 5. what is thenumber he is thinking of ?
Answers: 1
%) In each of the following situations, specify what type of access (read, write, both, or neither)...
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