New PMP Question & Answers with explanation

An Agile project team builds their schedule by pulling features from the backlog reflected on a task board as capacity to take on work becomes available. In some cases, a feature may take two weeks to complete, while in others, it takes more. What type of delivery method does this describe?
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Alyssa is a project manager tasked with managing an infrastructure project that will consolidate five data centers into one. Alyssa is in the process of determining whether communications-related artifacts and activities that she had planned earlier had the intended effect. She also recently launched a customer satisfaction survey to get feedback on how stakeholders feel things are progressing thus far within the project. What project management process is she performing?
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Kaylee is a risk manager working for a top healthcare company. She was recently brought in to support a project that has been plagued with a multitude of issues. The project sponsor informs her that the issues were a result of not implementing documented risk response plans. Kaylee clarifies to the sponsor that this is not the root cause of the issues at hand but is instead caused by the most common problem with project risk management. What problem is Kaylee referring to?
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You are a project manager for Rhone Valley Importers. Your buyer has found a new product that she’s convinced will sell well in this country. Taking on this new product introduces considerable opportunity for the company but at the same time is also a considerable threat. The cost of this product exceeds anything your company has imported before, and if it doesn’t sell as well as the buyer thinks it will, the company could go into bankruptcy. You determine that a feasibility study is in order. Which of the following statements is not true?
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The project manager is in the process of bringing the relevant parties together, along with a neutral party, to discuss a contested change to a procurement agreement. Which of the following is a valid tool or technique to assist the project manager in performing this activity?
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