One of the applications of Circular Queue is :a)Traffic Managementb)Memory managementc)CPU schedulingd)All of the mentioned

d) All of the mentioned

Explanation:

a) Traffic Management: Circular queues are used in traffic management where the traffic signal operates in a cyclic order.

b) Memory Management: In computer memory, circular queues are used to manage memory. They are used in the implementation of buffer memory.

c) CPU Scheduling: In CPU scheduling, circular queues are used to handle multiple processes. Each process is assigned a fixed time slot and the CPU is circulated among them in a round-robin fashion.

So, all of the mentioned applications use circular queues.