On a sequence diagram, a lateral bar or vertical rectangle is used to represent:

A) messages sent between classes.
B) the time sequence of activities.
C) the focus of control, when an object is busy doing things.
D) the lifeline for the class or object.

C) the focus of control, when an object is busy doing things.

Computer Science & Information Technology

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The active cell (as it applies to Excel 2010)

A) is where all the formulas of the workbook do the math. B) is the cell that always holds the current date. C) is where all the functions of the database perform the calculations. D) is the location of the insertion point as indicated by a dark border.

Computer Science & Information Technology

You can create custom headers and footers to provide useful information about your worksheet

Indicate whether the statement is true or false

Computer Science & Information Technology