New PMP Question & Answers with explanation

Following is an illustration of a project network activity node that includes some information about activity D. Given the information provided, what is the total float of activity D?


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The following table is an activity list that includes the duration and predecessor for a series of project activities. What is the duration of the critical path?


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The project manager and the team decide that the project will be divided into five-week iterations with two weeks in between for retrospectives and iteration planning. Where is this documented?
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In a pharmaceutical project, human trials are to start soon. The CEO is thrilled about the success of the trials up to this point. She announces that the size of the patient pool for the trials should double from the one originally planned and results tracked in the new system launching this week. What should the project manager do first?
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You are the project manager for the construction of a new thin-crust pizza vending machine. You take all the information gathered in the project management plan to date and begin to develop a project schedule. When you reach the activity labeled as 6.5.3, you are unsure if a refrigeration specialist is needed for the installation of the cooling mechanism for the pizza dough. What project document would you reference in order to get information on the resources required for installing the cooling mechanism?
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