- AA data structure that allows elements to be inserted and removed in any order
- BA data structure that allows elements to be inserted and removed from the beginning or end
- CA data structure that allows elements to be inserted and removed from one end only
- DA data structure that allows elements to be inserted at one end and removed from the other end
Queues - Quiz
- APush and pop
- BInsert and delete
- CEnqueue and dequeue
- DSort and search
- AArray
- BLinked list
- CBinary tree
- DHash table
- AThe queue remains unchanged
- BAn error occurs
- CThe front element is returned with no change to the queue
- DThe rear element is returned with no change to the queue
- AProcessing tasks in the order they are received
- B Implementing a breadth-first search algorithm in a graph
- C Storing data in a database
- D Printing documents in the order they are sent to a printer
- AO(1)
- BO(log n)
- CO(n)
- DO(n log n)
- AIt allows for efficient insertion and deletion at any position
- BIt allows for efficient searching and sorting of elements
- C It follows the Last-In-First-Out (LIFO) principle
- DIt allows for efficient insertion and deletion at both ends
- ASorting a list of integers
- BFinding the shortest path between two nodes in a graph
- C Evaluating arithmetic expressions in postfix notation
- D Implementing a binary search algorithm
- APriority queue
- BCircular queue
- CDouble-ended queue
- DBinary queue
- A A queue follows the Last-In-First-Out (LIFO) principle, while a stack follows the First-In-First-Out (FIFO) principle.
- BA queue allows elements to be inserted and removed from both ends, while a stack only allows elements to be inserted and removed from one end.
- CA queue is typically implemented using a linked list, while a stack is typically implemented using an array.
- DA queue is used for breadth-first search algorithms, while a stack is used for depth-first search algorithms.
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Queues - Quiz
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- A. A data structure that allows elements to be inserted and removed in any order
- B. A data structure that allows elements to be inserted and removed from the beginning or end
- C. A data structure that allows elements to be inserted and removed from one end only
- D. A data structure that allows elements to be inserted at one end and removed from the other end
Remarks:
Explanation:
Answer: d) A data structure that allows elements to be inserted at one end and removed from the other end
Explanation: A queue is a data structure that follows the First-In-First-Out (FIFO) principle, meaning that the element that is inserted first will be the first to be removed. It allows elements to be inserted at one end (rear end) and removed from the other end (front end).
- A. Push and pop
- B. Insert and delete
- C. Enqueue and dequeue
- D. Sort and search
Remarks:
Explanation:
Answer: c) Enqueue and dequeue
Explanation: The two primary operations on a queue are enqueue, which adds an element to the rear end of the queue, and dequeue, which removes the element from the front end of the queue.
- A. Array
- B. Linked list
- C. Binary tree
- D. Hash table
Remarks:
Explanation:
Answer: b) Linked list
Explanation: A linked list is commonly used to implement a queue since it allows for efficient insertion and deletion at both ends of the list.
- A. The queue remains unchanged
- B. An error occurs
- C. The front element is returned with no change to the queue
- D. The rear element is returned with no change to the queue
Remarks:
Explanation:
Answer: b) An error occurs
Explanation: Dequeueing an element from an empty queue is considered an error since there is no element to remove.
- A. Processing tasks in the order they are received
- B. Implementing a breadth-first search algorithm in a graph
- C. Storing data in a database
- D. Printing documents in the order they are sent to a printer
Remarks:
Explanation:
Answer: c) Storing data in a database
Explanation: While a queue can be used to store data temporarily in memory, it is not commonly used to store data in a database.
- A. O(1)
- B. O(log n)
- C. O(n)
- D. O(n log n)
Remarks:
Explanation:
Answer: a) O(1)
Explanation: The enqueue and dequeue operations on a queue implemented using an array have a time complexity of O(1), since they simply involve adding or removing an element from the beginning or end of the array.
- A. It allows for efficient insertion and deletion at any position
- B. It allows for efficient searching and sorting of elements
- C. It follows the Last-In-First-Out (LIFO) principle
- D. It allows for efficient insertion and deletion at both ends
Remarks:
Explanation:
Answer: d) It allows for efficient insertion and deletion at both ends
Explanation: The primary advantage of using a queue is that it allows for efficient insertion and deletion at both ends, making it useful for applications that require temporary storage of data in a specific order.
- A. Sorting a list of integers
- B. Finding the shortest path between two nodes in a graph
- C. Evaluating arithmetic expressions in postfix notation
- D. Implementing a binary search algorithm
Remarks:
Explanation:
Answer: b) Finding the shortest path between two nodes in a graph
Explanation
: A queue can be used to implement a breadth-first search algorithm, which is commonly used to find the shortest path between two nodes in a graph.- A. Priority queue
- B. Circular queue
- C. Double-ended queue
- D. Binary queue
Remarks:
Explanation:
Answer: d) Binary queue
Explanation: A binary queue is not a type of queue in data structure. Instead, it is a term used in computer science to describe a data structure that is similar to a binary heap.
- A. A queue follows the Last-In-First-Out (LIFO) principle, while a stack follows the First-In-First-Out (FIFO) principle.
- B. A queue allows elements to be inserted and removed from both ends, while a stack only allows elements to be inserted and removed from one end.
- C. A queue is typically implemented using a linked list, while a stack is typically implemented using an array.
- D. A queue is used for breadth-first search algorithms, while a stack is used for depth-first search algorithms.
Remarks:
Explanation:
Answer: b) A queue allows elements to be inserted and removed from both ends, while a stack only allows elements to be inserted and removed from one end.
Explanation: The primary difference between a queue and a stack is that a queue allows elements to be inserted and removed from both ends, while a stack only allows elements to be inserted and removed from one end. Additionally, a queue follows the First-In-First-Out (FIFO) principle, while a stack follows the Last-In-First-Out (LIFO) principle.