New PMP Question & Answers with explanation

You are managing an oil-drilling project. With oil at $143 per barrel, this could be a highly lucrative project. However, there is a chance that the price of oil will drop below $105 per barrel, which would eliminate the profit in the project. This is an example of:
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Mary is managing an organizational transformation project. The nature of the project would require responding to high levels of change and would also require continuous stakeholder engagement. Which of the project lifecycles should be chosen for this project?
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You are working with your team and are looking at the cost risks in the project. You and your team are currently creating a tornado diagram for the project risks. You do this as a part of which of the following processes?
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Early in the project, you are meeting with your team and would like to address all the strengths, weaknesses, opportunities, and threats the project is facing. What tool should be used?
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You are analyzing the risk in a project. You decide to do a sensitivity analysis to determine which risks have the most potential impact on the project. You consider using a tool to help compare the relative importance of variables that have a high degree of uncertainty with those variables that are more stable. One such tool is:
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