New PMP Question & Answers with explanation

Projects with adaptive life cycles use product backlogs to define a project’s scope. The product backlog is a set of:
Select one
Due to the unexpected release of a similar product from a competitor, the Widgets International executive team has stepped up the pressure on the product team to release the Widget product three months earlier. The project manager uses what technique to shorten the schedule but maintain the project scope?
Select one
While reviewing project procurement and accounting records for your project, you discover there is a pattern of unauthorized expenses by a specific resource. These expenses are not within the scope of the project and were somewhat camouflaged within a number of large and complicated expense reports. What do you do?
Select one
What is the logical sequence of the Project Scope Management processes?
Select one
The key difference between Validate Scope and Control Quality is:
Select one