What is the main advantage of using a circular array for implementing a queue compared to a regular array?
Faster access to individual elements
Better handling of sorted data
Efficient utilization of space after multiple enqueue and dequeue operations
Reduced memory consumption
How do you efficiently handle the situation where the array representing the queue becomes full?
Use a linked list instead of an array.
Delete the oldest element.
Resize the array to accommodate more elements.
Stop accepting new elements.
How does an array-based queue handle the underflow condition?
By dynamically resizing the array.
By using a circular array to reuse the empty spaces.
By overwriting the existing elements.
By raising an exception or returning an error value when attempting to dequeue from an empty queue.
In which of these scenarios is a queue data structure a suitable choice?
Managing function calls in a recursive program.
Implementing an undo/redo functionality in a text editor.
Handling requests in a multi-threaded environment based on their arrival order.
Storing a list of recently opened files in an operating system.
What is the worst-case time complexity of searching for an element in a queue implemented using a linked list?
O(1)
O(log n)
O(n)
O(n log n)
What is the role of the 'front' pointer in a queue data structure?
It determines if the queue is full or not.
It keeps track of the total number of elements in the queue.
It points to the element that has been in the queue the longest.
It points to the location where the next element will be added.
If a queue is implemented using a fixed-size array, what condition leads to a 'queue overflow' situation?
Trying to access an element beyond the queue's capacity.
Trying to add an element to a full queue.
Trying to remove an element from an empty queue.
Trying to sort the elements in the queue.
What data structure is used to implement a priority queue?
Heap
Linked List
Array
Stack
What is the primary characteristic that distinguishes a queue from other linear data structures?
It is a sorted data structure.
Elements are added at one end and removed from the other.
Elements are added and removed from the same end.
It allows for random access of elements.
If you were to design a system to handle customer service requests arriving through various channels, with each request needing to be addressed in the order it was received, which data structure would be most appropriate?
Graph
Binary Search Tree
Queue