New PMP Question & Answers with explanation

Your project calls for communication with an extremely large audience. What communication method would be appropriate under such circumstances?
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In complex and high value projects, which of the following activities will typically be performed by a business analyst prior to the project initiation?
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You are working on a project with all the team members located in geographically different areas, and all communication is by email and chat. It is sometimes hard to infer the true meaning of these messages because you cannot see facial expressions or hear tones of voice. This is an example of:
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You are the Project Manager and are responsible for the development of a mall. As with any construction project, there will be multiple iterations of blueprints and engineering drawings. Therefore, you have decided to create an online database that can be used to query the documents by name, type, date, etc. This is an example of what type of communication tool?
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When one factor used to determine the effort required to produce a unit of work is increased while all other factors remain fixed, a point will eventually be reached at which additions of that one factor start to yield progressively decreased productivity. This is known as:
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