Which one of the following is not a valid enumerated type declaration?
a. enum Iron { Melting = 2795, Boiling = 4982 }
b. enum Speed Limit { City = 35, Highway = 60 }
c. enum Temperature { Cold = 20, Hot = 90 }
d. enum Voltage { Orange = 3.3, Green = 5.0 }
d. enum Voltage { Orange = 3.3, Green = 5.0 }
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Choose a set of transactions for an application of your choice (other than a banking or student registration system). For each isolation level weaker than SERIALIZABLE, give an example of a schedule that produces an erroneous situation.
What will be an ideal response?
What elements are in the array newArray after the following code is executed?
``` Dim firstArray() As Integer = {1, 2, 3} Dim secondArray() As Integer = {3, 4, 5, 6} Dim newArray() As Integer = firstArray.Except(secondArray).ToArray ``` (A) 1, 2, 3, 3, 4, 5, 6 (B) 1, 2, 3, 4, 5, 6 (C) 3 (D) 1, 2
Describe the complexity (order) of insertion into a B-tree.
What will be an ideal response?
Why is defining classes such an important object-oriented analysis task?
What will be an ideal response?