New PMP Question & Answers with explanation

The WBS represents all product and project work. The total work at the lowest levels should roll up to the higher levels so that nothing is left out and no extra work is performed. This principle is also the:
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Which of the following is an example of a chart, used on agile projects, that tracks the work that remains to be completed in the iteration backlog?
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Which of the following statements is correct:
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Which of the following is an agile prototyping technique showing sequence or navigation through a series of images or illustrations:
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Which of the following processes produces a work breakdown structure as an output?
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