Priority Queue Quiz

What is a priority queue?

• A simple list of elements without any specific order.

• An abstract data type where elements are assigned a priority.

• A data structure that processes elements based on their order of insertion.

• A type of stack that allows for last-in, first-out processing.

In a Min Priority Queue, which element is dequeued first?

• The first element added to the queue.

• The element with the highest priority value.

• The most recently added element.

• The element with the lowest priority value.

What is the main advantage of using a priority queue?

• It processes elements in a strict first-in, first-out order.

• It allows for random access of elements.

• It efficiently manages tasks based on priority.

• It requires less memory than a regular queue.

Which of the following is a common use case for priority queues?

• Implementing a simple stack.

• Task scheduling in operating systems.

• Sorting a list of numbers.

• Storing data in a database.

What is the time complexity for insertion in a basic unsorted array implementation of a priority queue?

• O(1)

• O(n^2)

• O(log n)

• O(n)

What is a Max Priority Queue?

• A queue that processes elements based on their insertion order.

• A queue that processes elements with the lowest priority first.

• A queue that dequeues the element with the maximum priority first.

• A queue that only allows numeric priorities.

Which data structure is commonly used for efficient priority queue implementation?

• Array List

• Hash Table

• Binary Heap

• Linked List

What is a disadvantage of using a priority queue?

• It can only store numeric values.

• It requires additional storage for maintaining priority levels.

• It is always faster than a regular queue.

• It does not allow dynamic changes to priorities.

In which algorithm is a priority queue used to select the next vertex with the smallest distance?

• Quick Sort

• Merge Sort

• Dijkstra's Algorithm

• Prim's Algorithm

What happens to elements with the same priority in a Max Priority Queue?

• They cannot be added to the queue.

• They are all dequeued at once.

• They are processed in the order of their insertion.

• They are processed in a random order.