New PMP Question & Answers with explanation

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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You are employed by a software development company as a project manager. Your company has a policy that a change control board (CCB) reviews all of the change requests for every project in your organization, and the CCB follows all the recommended activities outlined in the PMBOK® Guide. You and your project team do not serve as members of the CCB. Based on this scenario, which of the following activities might be performed by members of the CCB?
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A project manager is leading a process improvement project for a factory operation. Currently, the project manager and the team are performing the Monitor and Control Project Work process. Which of the following activities might the project manager and the team conduct during this process?
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