Queue..linear and circular?

Question

difine Queue and describe the differences between linear queue and circular queue

Answer 1

In Linear queue the last node address field contains NULL value but in circular queue the last node address points to first node.
that contains a circular shape like this
|A|->| |B|->| |C| -> contains the address of node A |

Answer 2

This is a new one for me Sin it takes Newtonian law a step further what happens after the last reaction I want more of this