New PMP Question & Answers with explanation

A project manager is currently ensuring that the stakeholders clearly understand the project goals, objectives, benefits, and risks. This relates to which of the following processes?
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Jessica is managing an office refurbishment project. All the project stakeholders are identified and classified. The stakeholder engagement plan is also approved. Jessica is managing a project for the first time, and she is relying on the PMBOK guide as a reference to deliver an excellent project. Which of the following processes would provide guidance to Jessica regarding how to execute the approved stakeholder engagement plan?
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Mark is managing an airport construction project. He is currently identifying his project stakeholders, and he has compiled a long list of stakeholders already. Managing expectations of every project stakeholder is not practical. What should he do in this situation?
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Which of the following is the process of communicating and working with stakeholders to meet their needs and expectations, address issues as they occur, and foster appropriate stakeholder involvement?
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Which of these is not a legitimate model used to analyze stakeholders?
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