Snapshots can be used as backups

Which class of IP addresses are used for multicast communications, in which a single address may be associated with more than one network host machine?

A. Class A B. Class B C. Class C D. Class D

The ActionListener interface contains the ____ method specification.

A. actionOccurred(Action e) B. actionPerformed(ActionEvent e) C. actionEvent(ActionEvent e) D. action(Event e)