Which component of VPN technology ensures that data can be read only by its intended recipient?()
A、data integrity
B、encryption
C、key exchange
D、authentication
A、data integrity
B、encryption
C、key exchange
D、authentication
A、At most one listener of each type can be registered with a component. B、Mouse motion listeners can be registered on a List instance. C、There exists a class named ContainerEvent in package java.awt.event. D、There exists a class named MouseMotionEvent in package java.awt.event. E、There exists a class named ActionAdapter in package java.awt.event.