New PMP Question & Answers with explanation

A project manager meets with the project team to estimate the duration of activities identified to date. The project sponsor recently guided the project manager to present her with a duration estimate for the project that contains a high confidence level. What estimating technique is the project manager likely to use, assuming that the necessary information is available?
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Who is responsible for determining which processes within each process group are appropriate for the project?
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Given the following information, is the project schedule ahead of or behind what was planned for this period? EV = 95, PV = 85, AC = 100.
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You are working on a critical project for your organization. The CEO has made it clear this is a top priority. One of the key stakeholders on your project resigned, and her replacement started about three weeks ago. She does not make time for you or seem to have the same level of urgency regarding this project as the CEO. You are concerned with overall project success and want to efficiently manage the processes involved with this project. Which of the following addresses this situation?
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Cost plus incentive fee, cost plus award fee, cost plus percentage of cost, and cost plus fixed fee are all other names for what contract type?
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