New PMP Question & Answers with explanation

How can changes be made to a project management plan once the project manager baselines it?
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Due to a tight project schedule, a project manager did not document lessons learned throughout the project cycle. However, at the end of the project, he finally documented the lessons learned. Your comment on this is:
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One of the stakeholders of a project initiated a change request, which was then documented in the change control system. Who would typically be responsible for approving or rejecting the change request?
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The sponsor of a project created a document that included the business need and the cost-benefit analysis. What would this document be termed as?
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The list of identified risks is found in the risk register. However, the overall high-level project risks is first listed in the:
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