How can you prevent a queue implemented using a linked list from encountering an overflow condition?
Use a circular linked list
Linked list implementation inherently prevents overflow
Use a fixed-size array instead of a linked list
Implement a check for available memory before each enqueue operation
What is the time complexity of inserting an element into a binary heap-based priority queue in the worst-case scenario?
O(1)
O(n)
O(n log n)
O(log n)
When implementing a circular queue, what happens when you try to enqueue an element into a full queue?
An error is thrown, preventing the operation
The enqueue operation is blocked until space becomes available
The queue dynamically resizes to accommodate the new element
The oldest element is overwritten to make space
Which of the following operations is NOT efficiently supported by a standard queue data structure?
Get the front element
Enqueue at the rear
Search for a specific element
Dequeue from the front
Which of the following situations is MOST likely to benefit from using a priority queue?
Implementing a Last-In-First-Out (LIFO) data structure
Storing a collection of sorted integers
Managing tasks based on their urgency level
Performing a breadth-first search in a graph
In Dijkstra's algorithm, how does a priority queue help in finding the shortest path?
It keeps track of visited nodes to avoid cycles
It stores all possible paths and their lengths
It prioritizes nodes based on their distance from the source node
It optimizes the relaxation step by providing efficient updates
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
You are designing a system where elements are added and removed from both ends. Which data structure is the most suitable?
Deque
Queue
Stack
Binary Tree
In a circular queue implemented using an array, what is the purpose of the rear pointer?
To track the number of elements currently present in the queue.
To mark the beginning of the queue in the circular array.
To point to the element that was most recently enqueued.
To indicate the next available position for enqueuing an element.
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 dynamically allocating memory for each element.
By using a hash function to index elements.
By using a First-In, First-Out (FIFO) approach.