How would you explain scalability? How would you ensure that scalability has been considered in Zevo’s requirements model?
What will be an ideal response?
Scalability is the ability to adjust inventory system capacity as business requirements change in the future. To ensure that the inventory system will meet future requirements, you need information about current volume, future volume, and growth for all outputs, inputs, and processes. For example, you would need to know the estimated number of inventory items, the periods of peak online activity, the number and types of data items required for each transaction, and the method of accessing and updating inventory information.
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Which set of statements totals the items in each row of two-dimensional array items, and displays each row’s total?
a. for (int row = 0; row < items.length; row++) { int total = 0; for (int column = 0; column < items[row].length; column++) { total += items[row][column]; System.out.printf("Row %d's total is %d%n", row, total); } b. int total = 0; for (int row = 0; row < items.length; row++) { for (int column = 0; column < items[row].length; column++) { total += items[row][column]; } System.out.printf("Row %d's total is %d%n", row, total); } c. int total = 0; for (int row = 0; row < items.length; row++) { for (int column = 0; column < items[column].length; column++) { total += items[row][column]; } System.out.printf("Row %d's total is %d%n", row, total); } d. for (int row = 0; row < items.length; row++) { int total = 0; for (int column = 0; column < items[column].length; column++) { total += items[row][column]; } System.out.printf("Row %d's total is %d%n", row, total); }
The asterisk (*) symbol is also called the ____ operator.
a. pointer b. reference c. increment d. dereferencing
Managers at the Turquoise Oasis Spa are interested in knowing whether there is a relationship between the age of their clients and the amount of money they spend in the spa. Upon analyzing the data, they found a correlation coefficient of .672. Thus, the relationship between the two variables is ________
A) moderate B) weak C) strong D) very weak
In a function prototype that has a two-dimensional argument, the ____ size is optional.
A. column B. row C. array D. subscript