A. As needed, while taking into account a short term reduction in productivity.

B. Never, because it reduces productivity.

C. As needed, with no special allowance for changes in productivity.

D. Every Sprint to promote shared learning.

A. The Development Team is responsible, and may need help from the Scrum Master.

B. The Scrum Manager is responsible, because he/she removes Impediments.

C. The hiring manager is responsible, because he/she hired the developer.

D. The Product Owner is responsible, because he/she controls the return on investment (ROI).

A. Review the item, add the "Done" part of the estimate to the velocity and create a Story for the remaining work.

B. Put it on the Product Backlog for the Product Owner to decide what to do with it.

C. Do not include the item in the Increment this Sprint.

D. If the stakeholders agree, the Product Owner can accept it and release it to the users.

A. The Scrum Masters from each Scrum Team define a common Definition of Done.

B. Each Scrum Team defines and uses its own. The differences are discussed and reconciled during a hardening Sprint.

C. Each Scrum Team uses its own, but must make their definition clear to all other teams so the differences are known.

D. All Scrum Teams must have a Definition of Done that makes their combined work potentially releasable.

A. By facilitating Development Team decisions.

B. By keeping high value features high in the Product Backlog.

C. By removing impediments that hinder the Development Team.

D. By ensuring the meetings start and end at the proper time.