New PMP Question & Answers with explanation

Rick, a project manager, is updating the status of his project. Based on the performance indices, he expects the project to finish a month earlier than the planned finish date. However, he expects the project to exceed the budgeted costs. What can you say about the schedule performance index (SPI) of the project?
Select one
The Actual Cost (AC) is the total cost actually incurred and recorded in accomplishing work performed for an activity or work breakdown structure component. What is the upper limit for the AC?
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As part of the Estimate Costs process, a project manager obtained access to certain commercially available databases to get resource cost rate information. Such published commercial information is considered what type of input?
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Which of the following structures helps track project costs and can align with the organization’s accounting system?
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Jackie is the project manager of a large project. During the Determine Budget process, she identifies that contingency reserves need to be set up for unplanned but potentially necessary changes that could result from realized risks identified in the risk register. Which of the following is true about reserves?
Select one