New PMP Question & Answers with explanation

A project manager is preparing to lead a project status meeting. The project is currently 75 percent complete and is reaching the most critical point. Since the project sponsor is planning on attending the meeting, the project manager decides to update the earned value calculations to present the latest performance updates in terms that the sponsor will want to see. The budget at completion (BAC) is set at $550,000, and the current estimate at completion (EAC) is at $525,000. What variance at completion (VAC) value will the project manager communicate to the sponsor?
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Ken is a product owner for a new product and is integrating smart technology into refrigerators. The latest project aimed to incorporate new features into the product. These features involved the use of facial technology to recognize members of the household as they walked by, displaying tailored recommendations on a panel within the refrigerator, such as favorite recipes or encouraging comments. Recently, Ken received the news that a competitor beat his company to market, and a window was missed. The project was cancelled. The competitor had recently showcased its technology in a key annual appliance conference, but Ken was not able to attend. What did Ken fail to do?
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Legitimate, expert, referent, and punishment are all types of what?
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The project manager facilitates the implementation of approved changes by following the documented change control process. Which of the following is a valid tool or technique to assist the project manager in performing this activity?
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A product manager meets with the team to apprise them of changes to how the upcoming project will be managed. She notes that the focus will now shift to producing deliverables through iterations and that iterative scheduling with a backlog will be used to account for the uncertainty in requirements. What is the value of this approach?
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