New PMP Question & Answers with explanation

A good project manager always gathers and documents lessons learned throughout the project lifecycle rather than delaying the effort until the project closure. Which of the following is not a risk associated with postponing the lessons-learned gathering effort until the very end of the project?
Select one
Which of the following processes are usually performed once or at predefined points in the project:
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Jane is currently reviewing a list of project proposals. All the proposed projects achieve some of the organizational strategic objectives and their expected costs are known. However, Jane cannot execute all the projects due to the funding limitation. How shall Jane determine which projects she needs to execute this year?
Select one
A business is considering more than a dozen infrastructure upgrade projects. These projects, once delivered, will add to the organization’s overall performance but will not contribute to any of the revenue streams. Prior to initiating any such project, the value of the project to the organization must be determined. Which of the following is the most important factor to consider in such a scenario?
Select one
If an investment in a project returns 15 percent annually, how much should you invest to get $5 million by the end of the fifth year?
Select one