New PMP Question & Answers with explanation

Late in the project cycle, it was discovered that some of the project’s human resources should have trained in a specific methodology. Where should these training strategies have first been documented?
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A project manager would like to resolve conflicts by a give-and-take attitude rather than by a one-sided approach. Which of these approaches is he likely to use?
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Public recognition of superior performance creates positive reinforcement for the team members. When is the best time for a project manager to recognize team members' performance?
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The morale of the team members of a project is very low. The team members feel they were not given opportunities to participate in the organizational team development activities due to over-allocation to project tasks, and so, they missed opportunities to develop. Which of the following is the most likely cause of this situation?
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All team members have not yet been hired for a project. However, the project manager went ahead with estimating activity durations, budgeting, and other activities. What could likely happen to the activity durations?
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