Which of the following data structures can be efficiently used to implement a priority queue?
Doubly Linked List
Binary Heap
Hash Table
Binary Search Tree
How does a queue ensure that elements are processed in the order they were added?
By using a Last-In, First-Out (LIFO) approach.
By using a hash function to index elements.
By dynamically allocating memory for each element.
By using a First-In, First-Out (FIFO) approach.
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(1)
O(log k)
O(k)
O(n)
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
Which data structure is commonly used to implement a priority queue where efficient insertion and removal of the highest-priority element are crucial?
Which real-world scenario is best represented using a priority queue?
Storing a history of visited web pages in a browser
Managing a print queue where documents are printed in the order they are received
Scheduling tasks in an operating system based on their priority levels
Maintaining a list of recently used applications
When implementing a circular queue, what happens when you try to enqueue an element into a full queue?
The enqueue operation is blocked until space becomes available
The oldest element is overwritten to make space
The queue dynamically resizes to accommodate the new element
An error is thrown, preventing the operation
How can you prevent a queue implemented using a linked list from encountering an overflow condition?
Use a circular linked list
Implement a check for available memory before each enqueue operation
Linked list implementation inherently prevents overflow
Use a fixed-size array instead of a linked list
Which of the following operations is NOT efficiently supported by a standard queue data structure?
Search for a specific element
Get the front element
Enqueue at the rear
Dequeue from the front
Which of the following situations is MOST likely to benefit from using a priority queue?
Managing tasks based on their urgency level
Performing a breadth-first search in a graph
Storing a collection of sorted integers
Implementing a Last-In-First-Out (LIFO) data structure