New PMP Question & Answers with explanation

Janice, a project manager, wanted to obtain early feedback on the project requirements. However, she was concerned that the abstract representations of the requirements might not elicit useful feedback. Which of the following tools and techniques might help her overcome this hurdle?
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Projects, portfolios, and programs are different entities in an organization. Which of the following choices states a correct relationship between them?
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You are an electrical engineer with extensive experience in managing transmission projects but limited experience with electronic design projects. However, in a stretch assignment, you were recently transferred to another department in your company that focuses on electronic design. Furthermore, you were asked to lead a highly important project involving both transmission and electronic design. In preparation for a meeting with your manager to discuss this opportunity, you review the initial project design brief. Due to your limited background in electronic design, a number of items in this document seem unclear to you. When you arrive at your meeting, your manager asks if you will be leading the project. How do you respond?
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The quality cost of a project rose significantly during the course of the project. A post-mortem analysis of the increased cost revealed that this was due to poorly defined acceptance criteria. During which phase should the acceptance criteria have been properly captured?
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Given multiple alternatives, the group decision method that allows the largest block in a group to decide (even if more than 50 percent of the members of the group do not support the decision) is:
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