Files saved as JPEG images have the file extension ____.

A __________ is one that must meet its deadline, otherwise it will cause unacceptable damage or a fatal error to the system.

A) ?periodic task ? B) ?soft real-time task C) ?hard real-time task ? D) ?aperiodic task

The compiler uses a(n) ________________ to locate the classes it needs in the classpath.

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