In which scenario would you prefer using a queue over a stack?
Practice Questions
Q1
In which scenario would you prefer using a queue over a stack?
When you need to reverse elements
When you need to process elements in the order they were added
When you need to access the last added element
When you need to sort elements
Questions & Step-by-Step Solutions
In which scenario would you prefer using a queue over a stack?
Step 1: Understand what a queue is. A queue is a data structure that follows the First In, First Out (FIFO) principle, meaning the first element added is the first one to be removed.
Step 2: Understand what a stack is. A stack is a data structure that follows the Last In, First Out (LIFO) principle, meaning the last element added is the first one to be removed.
Step 3: Identify scenarios where order matters. If you need to process items in the exact order they were added, a queue is the right choice.
Step 4: Think of a real-life example. For instance, in a line at a ticket counter, the first person in line gets served first, just like a queue.
Step 5: Consider task scheduling. When tasks are scheduled to run in the order they are received, a queue is used to ensure fairness and order.
Step 6: Conclude that a queue is preferred over a stack when the order of processing is important and should reflect the order of addition.
