New PMP Question & Answers with explanation

During a recession, a project manager posts a positive risk that in the current economic environment, cheaper resources may become available. On the way into work, the project manager hears about a competitor going out of business and contacts the competitor to acquire some equipment, materials, and supplies at a fraction of their normal value. What is the project manager doing?
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A project manager notifies the project sponsor that the mitigation strategy for a major risk did not work. The sponsor states that the same risk response was implemented a few months ago on a similar project with the same result. How might this situation have been avoided?
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A project manager has just learned that the customer is not showing up to requirements meetings saying they have other more important tasks. Since this behavior has already been identified as a risk earlier in the project, the project manager escalates the issue to the stakeholder who is the risk owner responsible for communicating with the customer in such situations. The stakeholder is shocked to find out she is the assigned risk owner. What most likely went wrong?
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With a parking garage construction project underway, you are currently creating the risk management plan. In support of this process, you need to determine the acceptable level of overall project risk exposure. What should you do first?
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A project team performs monthly risk audits for a project in which a large number of identified risks have been realized. So far, the risk responses have been appropriate, and reserves are sufficient. An executive for the requesting organization chides the project manager for doing risk audits improperly, stating that like all audits, outside independent resources need to perform risk audits. How should the project manager respond?
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