New PMP Question & Answers with explanation

Megawatt is estimating the expected cost of a new ERP system deployment project using the actual costs of an earlier similar ERP system deployment project as the basis for the cost. This is what type of estimating?
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The Earned Value Management methodology can be used to:
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Large variations in the periodic expenditure of funds are undesirable for organizational operations. Therefore, the expenditure of funds is frequently reconciled with the disbursement of funds for the project. According to the PMBOK, this is known as:
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Which of these are not inputs to the Determine Budget process?
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You are a senior project manager working for RETAMART, a retail shopping network that sells various consumer products. As part of the expansion plan approved by the board of directors, you are a project manager for a new plant. Due to transportation problems, the project has experienced delays; the Schedule Performance Index (SPI) is at 0.6 and the Cost Performance Index (CPI) is at 0.7. However, you expect some improvements over the next few weeks, which may increase the SPI to 1.1 and the CPI to 0.9. Which of the following statements is true if your anticipated changes materialize?
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