New PMP Question & Answers with explanation

Which of the following best defines backlog refinement?
Select one
Calculate the to-complete performance index (TCPI) based on the current EAC, using the following values: BAC = 15,000, AC = 12,000, EV = 10,000, EAC = 17,000.
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You are a project manager for SubZero Delights, a company that offers extraordinary experiences to travelers. You have been working hard at developing your own personal leadership skills and have recruited a mentor to help you. During a mentoring session, you ask your mentor to talk about the characteristics that good leaders exhibit. What characteristics are they likely to call out?
Select three
A project manager became aware of a disagreement between two developers who have been paired together to write code. Which conflict-resolution technique should the project manager use to create a win-win situation?
Select one
A project manager is developing a high-level summary timeline of the schedule, based on the product road map, in collaboration with the team. This exercise will determine the number of sprints that are included within the release. Which tool or technique is the project manager and team using to develop the schedule?
Select one