At the Physical layer, data is referred to as a ____.

If a power wire is yellow what is the voltage?

A. +5 V B. +12 V C. -12 V D. +3.3 V E. +5 V Standby

Every JComponent has an instance variable called that enables the object to maintain references to all its registered listeners.

a. registeredListenerList b. listenerList c. registeredList d. eventListenerList