New PMP Question & Answers with explanation

Nancy's project is in execution. Nancy is currently planning to execute the Manage Stakeholder Engagement process. She has gathered the project documents such as the issue log, the change log, the stakeholder register, the lessons learned register and the necessary organizational process assets. Which of the following is a key input to this process that is still missing from this list?
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Nancy’s project has a large number of key positive and negative stakeholders. To ensure the project’s success, it is essential to manage the influential negative stakeholders closely. Do the key positive stakeholders need to be managed, too?
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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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