Simple queue, circular queue, priority queue, deque MCQsBy: Prof. Dr. Fazal Rehman | Last updated: May 14, 2025 20 Score: 0 Attempted: 0/20 Subscribe 1. : What is a simple queue? (A) A queue with no specific characteristics (B) A queue that allows elements to be added at both ends (C) A queue that follows FIFO principle (D) A queue that follows LIFO principle 2. : Which of the following operations is NOT supported by a simple queue? (A) Enqueue (B) Dequeue (C) Peek (D) Rearrange 3. : What is a circular queue? (A) A queue that allows circular access to elements (B) A queue where elements can be accessed randomly (C) A queue that follows LIFO principle (D) A queue that allows resizing dynamically 4. : What advantage does a circular queue offer over a simple queue? (A) It allows elements to be rearranged (B) It reduces memory usage (C) It prevents overflow errors (D) It supports priority-based operations 5. : In a circular queue, how is the front of the queue updated after a dequeue operation? (A) It remains fixed (B) It moves to the next element (C) It moves to the previous element (D) It depends on the element dequeued 6. : Which of the following operations is efficient in a circular queue compared to a simple queue? (A) Enqueue (B) Dequeue (C) Peek (D) Rearrange 7. : What is a priority queue? (A) A queue where elements are arranged based on their position (B) A queue that allows elements to be added at both ends (C) A queue where elements are arranged based on their priority (D) A queue that allows resizing dynamically 8. : In a priority queue, which element is dequeued first? (A) The element with the highest priority (B) The element with the lowest priority (C) The first element added (D) The last element added 9. : Which of the following data structures is commonly used to implement a priority queue? (A) Stack (B) Array (C) Linked list (D) Heap 10. : What is a deque (double-ended queue)? (A) A queue with two front ends (B) A queue with two rear ends (C) A queue that allows elements to be added and removed from both ends (D) A queue that allows elements to be accessed randomly 11. : Which of the following operations is NOT typically supported by a deque? (A) Enqueue (B) Dequeue (C) Peek (D) Rearrange 12. : In a deque, which operation allows adding an element to the front of the queue? (A) Frontenqueue (B) Dequeuefront (C) Enqueuefront (D) Pushfront 13. : Which type of queue is suitable for applications where elements are added based on their urgency or importance? (A) Simple queue (B) Circular queue (C) Priority queue (D) Deque 14. : What is the main drawback of a simple queue compared to other types of queues? (A) Limited capacity (B) Slower insertion operation (C) Inability to handle priority-based operations (D) Inefficient memory usage 15. : Which type of queue is most appropriate for implementing a round-robin scheduling algorithm? (A) Simple queue (B) Circular queue (C) Priority queue (D) Deque 16. : In which scenario would a deque be more advantageous than other types of queues? (A) When elements need to be added and removed from both ends (B) When elements are accessed in a random order (C) When elements are added based on their priority (D) When elements are added only at the rear 17. : Which type of queue is typically used in printer spooling systems to manage print jobs? (A) Simple queue (B) Circular queue (C) Priority queue (D) Deque 18. : What is the time complexity of the enqueue operation in a priority queue with a binary heap implementation? (A) O(1) (B) O(log n) (C) O(n) (D) O(n log n) 19. : In which type of queue does the size remain fixed after initialization? (A) Simple queue (B) Circular queue (C) Priority queue (D) Deque 20. : Which type of queue efficiently supports applications where elements are added and removed alternately from both ends? (A) Simple queue (B) Circular queue (C) Priority queue (D) Deque Data Structures MCQs Basic Concepts Introduction to Data Structures Abstract Data Types (ADT) MCQs Complexity Analysis MCQs Time complexity MCQs Space complexity MCQs Big O, Big Ω, Big Θ notations MCQs Linear Data Structures MCQs Arrays MCQs One-dimensional arrays MCQs Multi-dimensional arrays MCQs Operations: traversal, insertion, deletion MCQs Linked Lists MCQs Singly linked list MCQs Doubly linked list MCQs Circular linked list MCQs Stacks MCQs Stack operations (push, pop, peek) MCQs Applications of stacks (expression evaluation, recursion) MCQs Queues MCQs Queue operations (enqueue, dequeue, front, rear) MCQs Types: Simple queue, circular queue, priority queue, deque MCQs Non-Linear Data Structures MCQs Trees MCQs Binary trees MCQs Binary Search Trees (BST) MCQs AVL Trees MCQs B-trees and B+ trees MCQs Tree traversal methods (in-order, pre-order, post-order) MCQs Heaps MCQs Min-heap MCQs Max-heap MCQs Heap operations (insertion, deletion, heapify) MCQs Applications of heaps (priority queues, heap sort) MCQs Graphs MCQs Graph representation (adjacency matrix, adjacency list) MCQs Graph traversal algorithms (DFS, BFS) MCQs Shortest path algorithms (Dijkstra’s, Bellman-Ford) MCQs Minimum Spanning Tree (Kruskal’s, Prim’s) MCQs Hashing MCQs MCQs Hash Tables Hash functions MCQs Collision resolution techniques (chaining, open addressing) MCQs Applications of hashing MCQs Sorting and Searching Algorithms MCQs Sorting Algorithms MCQs Bubble sort MCQs Selection sort MCQs Insertion sort MCQs Merge sort MCQs Quick sort MCQs Heap sort MCQs Searching Algorithms MCQs Linear search MCQs Binary search MCQs Interpolation search MCQs Miscellaneous Memory Management in data structures MCQs Dynamic memory allocation MCQs Garbage collection MCQs String Manipulation Algorithms MCQs Pattern matching (KMP, Rabin-Karp) MCQs String hashing MCQs Data Structures MCQs 1 Data Structures MCQs 2 Data Structures MCQs 3 Data Structures MCQs 4 Data Structures MCQs 5 Stacks Solved MCQs Queues MCQs pointer mcqs Array MCQs Related Posts:Program to Implement Priority Queue in Data Structures (C plus plus)Program to Implement Circular Queue in Data Structures (C plus plus)Applications of heaps (priority queues, heap sort) MCQsPriority Based Process Scheduling in operating systemsCircular linked list MCQsCircular linked list implementation in C++ (Singly)