Question: List three specific applications in which you believe it would be useful to utilize a queue. Explain the purpose of the queue in each of

List three specific applications in which you believe it would be useful to utilize a queue. Explain the purpose of the queue in each of these applications.

Suppose we add an internal field to the implementation of class Linked Queue as follows (new field shown in boldface):

This new field last is always a reference to the last node in the list representing the queue. The command add is expected to be much more efficient. Explain why.

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