New PMP Question & Answers with explanation

Joe has been managing a project for Exton Oil Corp. This project involves redesigning filling stations across the state. The redesign involves new gas pumps, security cameras, convenience stores, and use of environmentally friendly materials in the construction. While the redesigning work proceeds, Joe’s design engineer suggests a secondary alarm system for gas pumps to alert the attendant in case of a spill. Although this suggestion is not in the project requirements, Joe is impressed with the engineer’s recommendation. What should be the next step for Joe with regard to the engineer’s suggestion?
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The WBS structure can be created in a number of forms except which of the following?
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During the execution of a project, a large number of defects were discovered. The project manager ensured that the issues, defect resolution, and action item results were logged into a defects database. What would the defect database be considered a part of?
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You are meeting with your stakeholders to gather requirements for your project. You are well aware that requirements to be gathered include both product and project requirements. All the following tools can be used to gather, define, and analyze project requirements from stakeholders except:
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You are managing a project with a large multinational staff. Susan, one of the engineers, was originally asked to deliver her part of the work on October 19. Due to a change in the critical path, her deliverable will be needed two days sooner. However, as the new deadline is still two weeks away and she is ahead of schedule, you are confident her delivery will be on time. During a staff meeting, you learn from John, her functional manager, that Susan celebrates a religious holiday on October 17. However, he also tells you that Susan is not particularly religious; if pushed a bit and offered some incentive, she may forego celebrating this holiday and come to work. What should you do?
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