New PMP Question & Answers with explanation

A first-time project manager is trying to understand the difference between configuration control and change control. The difference is:
Select one
To create a quality product, the project management team invested in training the project team members and purchasing high-end equipment. Such costs are:
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The project sponsor asks you to increase budget estimates by 25 percent to ensure that the project has enough funds budgeted. What should you do?
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You have recently been successful in passing the Project Management Professional exam. Others within the organization you work for are also pursuing the certification and have sought your assistance. They have requested that you provide them with a detailed list of the questions that you had on the exam. What is the FIRST course of action you should take?
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Which of the following statements is incorrect?
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