New PMP Question & Answers with explanation

Control charts measure the results of processes over time and depict common causes of variances. Common causes of variances are a result of all of the following except which one?
Select one
Which of the following represent characteristics of a servant leader?
Select three
What questions should a team ask when developing an implementation strategy using an Agile mindset?
Select two
Within an Agile project, the role of project manager may or may not be used. What other roles within an Agile team reflect responsiblities similar to those of a project manager?
Select one
A project manager rallies the team together for one final meeting, which will wrap up with a celebration for the successful achievement of the project’s final feature and completion of all transition activities. Post-meeting, the project manager sits down to summarize the project’s journey, including its performance against planned business value and objectives. This summary document will then be handed over to the sponsor and archived with the remaining project artifacts for future reference. What is this summary document also known as?
Select one