In which scenario would you prefer a queue over a stack?

Practice Questions

Q1
In which scenario would you prefer a queue over a stack?
  1. When you need to access the last element
  2. When you need to process elements in the order they were added
  3. When you need to delete elements randomly
  4. When you need to access elements by index

Questions & Step-by-Step Solutions

In which scenario would you prefer a queue over a stack?
  • Step 1: Understand what a queue is. A queue is a collection where the first element added is the first one to be removed (FIFO).
  • Step 2: Understand what a stack is. A stack is a collection where the last element added is the first one to be removed (LIFO).
  • Step 3: Identify scenarios where order matters. For example, if you are processing tasks in the order they arrive, you need a queue.
  • Step 4: Think of real-life examples of a queue, like people waiting in line. The first person in line is the first to be served.
  • Step 5: Compare this to a stack, like a stack of plates. The last plate added is the first one taken off.
  • Step 6: Conclude that if you want to process items in the order they were added, you should use a queue.
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