What is a potential drawback of implementing a queue using a fixed-size array?
Higher memory usage compared to a linked list implementation
The inability to handle a queue size exceeding the array's capacity
Increased time complexity for enqueue and dequeue operations
Difficulty in searching for specific elements within the queue
What type of memory allocation does a linked list-based queue primarily rely on?
Static memory allocation
Heap allocation
Stack allocation
Direct memory access
Which queue implementation is generally preferred when you need to prioritize elements based on certain criteria, leading to elements being dequeued out of their standard FIFO order?
Linked list-based queue
Circular queue
Array-based queue
None of the above
Consider a circular queue implemented using an array. If the front is at index 5 and the rear is at index 2 (with a valid queue configuration), what is the current size of the queue (assuming the array has a capacity greater than the queue size)?
Cannot be determined with the given information
7
3
4
What is the time complexity of enqueue and dequeue operations in a well-implemented queue using a linked list?
O(n)
O(1)
O(n log n)
O(log n)
In a circular queue implemented using an array of size N, how many elements can the queue hold at any given time?
N
N + 1
N - 1
It depends on the data type of the elements
Consider two queues: Q1 implemented using a singly linked list and Q2 implemented using a circular array. Both queues currently hold n elements. What is the difference in time complexity for dequeuing all elements from Q1 and Q2?
Q1 has O(n) complexity, Q2 has O(1) complexity
Q1 has O(n^2) complexity, Q2 has O(n) complexity
Q1 has O(n) complexity, Q2 has O(n^2) complexity
Both have the same time complexity, O(n)
What is a significant disadvantage of implementing a queue using a single linked list compared to a doubly linked list?
More complex implementation logic
Inability to perform efficient dequeue operations
Slower enqueue operations as the tail needs to be traversed
Increased memory usage due to the extra 'next' pointer
Imagine you need to design a system for handling requests with different priority levels. High-priority requests should be processed before lower-priority ones. Which queue implementation would be best suited for this scenario?
A priority queue
A LIFO queue (stack)
A standard FIFO queue
A circular queue
In a circular queue implemented using an array of size N, what is the most efficient way to check if the queue is full?
(rear + 1) % N == front
rear == N - 1
front == rear
front == 0