New PMP Question & Answers with explanation

A project manager estimated that a project would require 4375 personhours of effort. The project ended up using 6250 person-hours of effort. The difference between these two figures is a:
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Dina, the project manager of a hardware project, is performing a structured review of the procurement process. She would like to examine each document from the Plan Procurement Management process through the Control Procurements process to identify failures. What tool should Dina use?
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Which of the following scenarios is likely to occur in a project?
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You are just about to present your project’s status to your company’s executive team. Just as you are leaving your desk for the meeting, one of your resources hands you an updated report on the progress of a critical deliverable. As you are walking to the conference room, you review the report and notice there is an error in it. What do you do?
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A new project manager has just taken over a project that is 50 percent complete. As part of the hand-over process, the outgoing project manager provided the new project manager with a list of stakeholders that needed to be managed. The list had been compiled at the start of the project. Which of the following is true about stakeholders?
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