In the accompanying figure, item 2 is the ____.

In a token ring network, the busy token is removed from the ring and replaced with a free token

a. by the receiver of the data b. by any standby monitor c. by the active monitor d. by the sender of the data

As a general rule, recursive algorithms should be used only when their efficiency is _____.

A. linear B. logarithmic C. quadratic D. exponential