For each type of feasibility, suggest two questions that will help Susan reach a determination.
What will be an ideal response?
Pages 52-53 provide an extensive list of questions for each of the four types of feasibility. Students should have no difficulty coming up with suitable examples from that resource.
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Which of the following is NOT an advantage of using a shared network folder?
A) The Read-Only option allows people to view the file but not make changes. B) Working on the file from home or while traveling requires special software to connect to the network securely over the Internet. C) All the people to whom access is granted can work on the same file so there is no problem with creating conflicting versions. D) Shared files can only be edited by one person at a time.
The ____ method of a StreamReader object should be used to read the next character in a file without changing position in the file.
A. CheckNext B. Peek C. PeekNext D. TestNext
Consider a relation s over the attributes A and B with the following characteristics:
7,000 tuples with 70 tuples per page A hash index on attribute A The values that the attribute A takes in relation s are integers that are uniformly distributed in the range 1 ? 200. (a) Assuming that the aforesaid index on A is unclustered, estimate the number of disk accesses needed to compute the query A=18(s). (b) What would be the cost estimate if the index were clustered?
The number of elements in an array is called the ____ of the array.
A. width B. size C. height D. depth