New PMP Question & Answers with explanation

The transition from one phase to another within a project's lifecycle (e.g., from design to manufacturing) is typically marked by:
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A project manager is managing a research project. Typically, research projects are not clearly defined and involve a lot of uncertainty. The project has four phases in which a phase can only start when its previous phase is complete. What project lifecycle and phase-to-phase relationship should the project manager use for this project?
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Which of the following is not a PMBOK Knowledge Area?
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If you are creating a new WBS for your project, what should you do to save time during the creation process?
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Which of the following should you not use as an input into creating the WBS structure?
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