A range is specified by its ________
A) top left and bottom right cells B) top and bottom row and left and right column
C) top row and leftmost column D) top right and bottom left cells
A
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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?
Suppose that you have a binary file that contains numbers whose type is either int or double. You don’t know the order of the numbers in the file, but their order is recorded in a string at the beginning of the file. The string is composed of the letters i (for int) and d (for double) in the order of the types of the subsequent numbers. The string is written using the method writeUTF. For example, the string "iddiiddd" indicates that the file contains eight values, as follows: one integer, followed by two doubles, followed by two integers, followed by three doubles. Read this binary file and create a new text file of the values, written one to a line.
What will be an ideal response?
Site preparation can include _____.
a. the hiring and training of information systems personnel b. installing special wiring and air conditioning c. readying users for a new system d. physically placing a computer system on the site and making it operational
The distinguishing characteristic of an abstract method is ____.
A. no implementation details are included B. they cannot be included in abstract classes C. no parameters are found in the heading for the method D. methods may not include a return type