Minimum number of queues to implementing priority queue

Question

What is minimum number of queues required to implementing the priority queue?

Answer 1

Priority Queue:

It is a queue where:

a.    Requests are inserted within the order of arrival

b.    The request along with highest priority is processed initially (i.e., deleted from queue).

Minimum number of queues required implementing the priority queue is Two. One queue is utilized for actual storing of data and the other for storing priorities.