New PMP Question & Answers with explanation

When should Agile teams hold retrospectives?
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During the execution phase of a biotech project, a new issue has surfaced. What is one of the first things that the project manager should do?
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A project manager of Cyber Channels Inc. is in the process of assigning resources to her current project. At the end of the day, she receives an angry call from the director of engineering, who is upset that his senior systems administrator was assigned to the project without his consent. At this stage, what should the project manager do to keep this resource?
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Cloud Divine is a startup company that provides SaaS using cloud computing. The first major project launched by the company involved a high degree of ambiguity and experienced issues, including a large number of changes to the project deliverables, nearly resulting in a failed project. All projects within the company are managed using a predictive life-cycle approach. What is the most likely cause for the high degree of issues experienced in the project?
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Which of the following statements are true?
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