New PMP Question & Answers with explanation

You are the project manager for a project that will produce a mobile phone application that sends alerts when the UV rays are at dangerous levels, alerting users to stay indoors. As you move into the final closing stages of the project, you review communications generated for and by stakeholders as a method of analyzing feedback. What document will you reference to review this feedback?
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A project manager is in the process of assembling the final report of the project. What project document are they likely to reference to view the completion date of major project deliverables?
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Nicolas is the project manager of a project that has been described as revolutionizing the mobile fitness tracking industry. After consulting with his team of subject-matter experts, he decides to use Scrum. Nicolas’s project team continues to build on the product through two-week iterations. Iterations are also known by what other name?
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A project manager has just closed out a procurement, which produced the final deliverable of the project. What is the project manager likely to do next?
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David is a project manager working for a prominent book publishing company. As part of his latest project, he uses an approach that yields frequent smaller deliverables throughout the span of the project. What type of project life cycle is David using?
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