New PMP Question & Answers with explanation

Carina is a principal project manager of You’ve Got Dogs, a specialty company that creates custom dog apparel and toys. She has just concluded the Design phase and is scheduled to perform a phase review with the steering committee facilitated by the company’s PMO. Phase reviews are also called by what other name?
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Kaylee is a project manager for a company that builds software for mobile devices. One of her projects involves the development of a health app that syncs with other health apps to combine and analyze the data for a comprehensive view. As a result of a recent regulatory change, she works with the team to refine the backlog. Backlog refinement can best be described as:
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Kaylee is a project manager for a company that builds software for mobile devices. One of her projects involves the development of a health app that syncs with other health apps to combine and analyze the data for a comprehensive view. Most recently, she completed a review of the project’s prioritized backlog with the project team to prepare for the upcoming iteration. She learns that a new regulation passed by the government may impact several features of this app. What is she likely to do?
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Quincy and Michael are two executives of Widgets for Life, a company providing the latest cool lifestyle gadgets. They have recently decided to invest further in their organization’s project management capabilities by creating a PMO. After lengthy discussions, they decide to focus on a PMO model that will drive compliance against a set of project management standards. What type of PMO are they implementing?
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Roshoud is the VP of customer operations for Galactic Kidz and project sponsor of the latest project, called Project G. He sits down with Sally, the project manager, to evaluate whether the project is on track to deliver planned value. What document are they likely to reference during the discussion?
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