In a scenario simulating a print queue, where print jobs with higher priority should be executed first, which queue implementation is most suitable?
Deque (Double-ended queue)
Priority queue
Circular queue
Simple queue
What is the time complexity of inserting an element into a binary heap-based priority queue in the worst-case scenario?
O(log n)
O(1)
O(n)
O(n log n)
In a priority queue, elements with the same priority are dequeued in what order?
The order they were enqueued
Sorted order based on an additional attribute
Random order
It depends on the specific priority queue implementation
You are designing a system where elements are added and removed from both ends. Which data structure is the most suitable?
Stack
Binary Tree
Queue
Deque
You have a queue implemented using a linked list. What is the time complexity of finding the kth element from the front of the queue?
O(k)
O(log k)
You need to implement a queue using two stacks. What is the time complexity of the dequeue operation in the worst-case scenario?
In a circular queue implemented using an array of size 5, if the front is at index 3 and the rear is at index 1, how many elements are present in the queue?
4
3
2
1
How can you prevent a queue implemented using a linked list from encountering an overflow condition?
Linked list implementation inherently prevents overflow
Implement a check for available memory before each enqueue operation
Use a circular linked list
Use a fixed-size array instead of a linked list
In the context of Breadth-First Search (BFS), how does a queue help explore a graph?
It ensures that nodes are visited in a depth-first manner.
It maintains a list of visited nodes to prevent cycles.
It facilitates visiting all neighbors of a node before moving to the next level.
It stores the path from the source node to the current node.
What happens when you dequeue from an empty circular queue?
The queue becomes full
An error is thrown
The operation has no effect
The front pointer moves to the next position