All Sprints must be one month or less. Sprint length is not decided per Sprint to fit the planned work, and there is no time between Sprints.
Exam Question
Which of the following are true about the length of the Sprint? (choose the best answer)
- A. All Sprints must be one month or less.
- B. The length of the Sprint should be proportional to the work that is done in between Sprints.
- C. Sprint length is determined during Sprint Planning, and should be long enough to make sure the Scrum Team can deliver what is to be accomplished in the upcoming Sprint.
- D. Sprint length is determined during Sprint Planning, and should hold the time it will take to build the planned features in the upcoming Sprint, but does not include time for any testing.
Correct Answer
A. All Sprints must be one month or less.
Why This Is the Correct Answer
The Scrum Guide states that “Sprints are fixed length events of one month or less to create consistency.” The upper limit keeps the feedback loop short, so the team and stakeholders can inspect a usable Increment and adapt before too much risk builds up. Within that limit, the Scrum Team picks a length that suits the product and its uncertainty, and keeps it consistent. The length is not stretched or squeezed each Sprint to match a scope. Scrum fixes time and lets scope flex, not the other way around.
Why the Other Options Are Wrong
B. Sprint length is proportional to work done between Sprints. There is no work between Sprints. A new Sprint starts right after the previous one ends.
C. Length is set at Sprint Planning to fit what must be delivered. That turns a fixed timebox into a variable one sized by scope. Sprint length is not renegotiated at each Sprint Planning.
D. Length is set at Sprint Planning and excludes testing. Testing is part of meeting the Definition of Done inside the Sprint. Leaving it out would mean the Increment is not done.
Exam Tip
If an option lets scope set the Sprint length, it is wrong. The timebox is fixed and the work selected adapts to it.
Key Takeaways
- A Sprint is never longer than one month.
- Sprint length stays consistent rather than fitting each scope.
- Testing happens inside the Sprint, not after it.

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More PSM I exam questions
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- What are two good answers a Scrum Master might give their manager and Product Owner when they say they have allocated budget for a first Sprint to figure out architecture and infrastructure issues?
- Select two ways that time-boxing promotes self-organization.
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- What is the responsibility of the Product Owner in crafting the Sprint Goal?” (PSM I)

