Which of the following is the shortest timebox in a two-week Sprint?

In a two-week Sprint, the shortest timebox is the Daily Scrum. This event is designed to be a brief meeting held every day during the Sprint, typically lasting no more than 15 minutes. Its primary purpose is to facilitate synchronization among team members and to inspect progress toward the Sprint Goal, enabling the team to adapt their plans for the day accordingly.

Other Scrum events, such as Sprint Planning, Sprint Review, and Sprint Retrospective, have longer timeboxes. Sprint Planning, which kicks off the Sprint, involves discussing and determining what work will be undertaken, and typically takes several hours. The Sprint Review occurs at the end of the Sprint and involves stakeholders, taking up additional time to demonstrate the work completed. The Sprint Retrospective, also conducted at the end of the Sprint, provides an opportunity for the team to reflect on the Sprint and identify improvements, usually requiring a longer duration as well.

Therefore, the Daily Scrum stands out as the briefest of all the events within the two-week Sprint framework.