New PMP Question & Answers with explanation

Which of the following best describes why quality is planned in and not inspected in?
Select one
During the completion of the project work. A project manager wants to ensure that the quality of the end product is acceptable. The best way to do this is by:
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Which of the following methods is used to provide a standard to measure performance?
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At a critical milestone in a development project, it is determined that implementation is two months behind schedule. The project manager is concerned the root cause is lack of conformance to requirements in the design of the new billing system. More extensive measurements are taken to see if this is, in fact, the problem. Such measurements are:
Select one
A project manager ¡s having problems with how two of the parts fit together on the new computer and the software uploads to the system. To plan a strategy for resolving these problems, it is best to determine if the problems are:
Select one