Which of the following are events that a programmer would want to throw an exception to manage?

a. A power failure (presumably in the absence of a UPS -- an Uninterruptable Power Supply).
b. A user enters a name too long for the C-string buffer, threatening a buffer overflow.
c. A disk drive fails
d. Operator new fails to find sufficient memory in the free store to satisfy a call.
e. Someone inadvertently presses the reset button on the front of the machine.

Parts b) and d) are situations that the exception facility was designed to manage.
Explanation: The exception facility was designed to manage unusual but predictable events, not unpredictable events such as power failure, hardware failure or someone pressing reset.