New PMP Question & Answers with explanation

Which of the following agile methodologies are a type of pull system?
Select two
Which of the following agile methodologies describes the seven wastes?
Select one
Which of the following are true about a PMO?
Select three
During which project management process group are risk and stakeholders' ability to influence project outcomes the highest?
Select one
What are the five project management process groups, in order?
Select one