New PMP Question & Answers with explanation

You have used several cash flow methods to determine alternative ways of performing your current project. Which of the following do you know is true regarding the results of your cash flow analysis?
Select one
Plan Schedule Management, Estimate Activity Durations, and Control Schedule are processes that belong to what project management Knowledge Area?
Select one
Your customer has decided that you cannot go forward with the project you’re managing without a change to the agreed-upon WBS. A contract amendment is agreed on and signed, the change control system processes are followed, and you modify the appropriate planning documents to reflect the change. As a result of the approved change, substantial updates to the project costs and the project schedule occur as well. Which of the following is not true regarding this situation?
Select one
Which process is concerned with effectively engaging stakeholders, understanding their needs and interests, understanding the good and bad things they bring to the project, and understanding how the project will affect them?
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A project manager is preparing to obtain the resources needed to perform the work of the project. What project document is the project manager likely to reference as a guide to both acquiring and managing the project resources?
Select one