Final answer:
Sprints have a fixed duration, while iterations can vary in length in Scrum.
Step-by-step explanation:
The difference between Sprint and Iteration in Scrum is that Sprints have a fixed duration, while iterations can vary in length.
A Sprint is a time-boxed period in Scrum, typically lasting 2-4 weeks, during which a set of user stories or tasks are completed. It is a focused period of work that ends with a review and retrospective.
An iteration, on the other hand, is a general term that can be used in different development methodologies. It refers to a time-bound cycle in which a specific set of tasks or goals are accomplished.