____ is a real-time Internet communications service that notifies users when one or more people are online and then allows them to exchange messages or files or join a private chat room.
A) Wikispace
B) IM
C) Chattalk
D) Communispace

Question

Quizplus · Accepted Answer

IM (Instant Messaging) is a real-time Internet communications service that allows users to exchange messages or files and join private chat rooms while notifying them when one or more people are online. None of the other options provide this functionality.

____ Is a Real-Time Internet Communications Service That Notifies Users