New PMP Question & Answers with explanation

This has been determined that six additional computers are needed to complete the project. The computers are an example of
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How close to actual costs should a definitive budget estimate be
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Which of the following is a key way to improve activity cost estimates
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The plan cost management process addresses all the following except
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You are managing a new oil purification project in a foreign country. A person informs you that you will have to pay him a "transfer fee" for the permit to move heavy equipment through the city. What is the first thing you should do?
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