The name of a memory location in C++ can begin with a letter or a number.

A Form’s default Button is the one that will be pressed when the user presses the Enter key and is specified by setting the Form’s __________ property to the appropriate Button.

a) DefaultButton b) SetButton c) AcceptButton d) EnterButton

A thread is considered to be _________ if the ratio of its voluntary sleep time versus its runtime is below a certain threshold.

Fill in the blank(s) with the appropriate word(s).