New PMP Question & Answers with explanation

During a project's review, an executive states the project manager failed to forecast future outcomes based on past results, review how other projects addressed the similar issues, and analyze alternative solutions to issues. What has the project manager most likely overlooked with his intuitive manner of running the project?
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The project you have been managing for several years is now moving towards completion. Some of the project deliverables have been contracted to vendors. You begin to close the project and want to make sure all activities necessary for project closure are properly completed. Which of the following activities would you not perform as part of this process?
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As a project manager, you are in the process of establishing a knowledge management system for your project. Which of the following actions will be the least beneficial in this process?
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A project manager is about to start planning a software development project. The project sponsor would like to review any project risks that have been identified at this point. Which document should the project manager recommend the sponsor to review?
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You are a project manager for a national consumer goods retailer. Currently, you are about to start the development of the assumption log for a project to build a new retail store. What should you do first?
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