For maintaining a log of user sessions in a trading platform, a queue implemented with a fixed-size circular array is used. When the queue is not empty, dequeuing the oldest session takes constant time O(1) primarily because:

Question

Computer Science · Data Structures

Verified Solution4 Options

Answer 1

It uses an auxiliary stack for background backup operations

Answer 2

It dynamically resizes the array automatically

Answer 3

It increments the front index using the modulo operator to achieve wrap-around

Answer 4

It shifts all remaining elements in the array to the front

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