You need to implement a queue using two stacks. What is the time complexity of the dequeue operation in the worst-case scenario?
O(1)
O(log n)
O(n log n)
O(n)
You are designing a system where elements are added and removed from both ends. Which data structure is the most suitable?
Queue
Binary Tree
Stack
Deque
What is the time complexity of inserting an element into a priority queue implemented using a binary heap (in the average case)?
How does a queue ensure that elements are processed in the order they were added?
By dynamically allocating memory for each element.
By using a Last-In, First-Out (LIFO) approach.
By using a hash function to index elements.
By using a First-In, First-Out (FIFO) approach.
In a priority queue, elements with the same priority are dequeued in what order?
Sorted order based on an additional attribute
It depends on the specific priority queue implementation
Random order
The order they were enqueued
Which of the following situations is MOST likely to benefit from using a priority queue?
Performing a breadth-first search in a graph
Implementing a Last-In-First-Out (LIFO) data structure
Storing a collection of sorted integers
Managing tasks based on their urgency level
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
2
1
3
In a priority queue implementation using a sorted array, what is the time complexity of the dequeue operation in the worst-case scenario?
In a scenario simulating a print queue, where print jobs with higher priority should be executed first, which queue implementation is most suitable?
Simple queue
Priority queue
Deque (Double-ended queue)
Circular queue
How can you prevent a queue implemented using a linked list from encountering an overflow condition?
Use a fixed-size array instead of a linked list
Implement a check for available memory before each enqueue operation
Use a circular linked list
Linked list implementation inherently prevents overflow