New PMP Question & Answers with explanation

Which of the following helps a project manager determine possible causes of potential problems and actual problems?
Select one
A project manager has to resolve two problems. Both problems can occur in a single trial. In this situation, what is the best action the project manager can take?
Select one
You are the program level manager with several project activities underway. In the executing process group, you begin to become concerned about the accuracy of progress reports from the projects. What would best support your opinion that there is a problem?
Select one
The project team has created a plan for how they will implement the quality policy. It addresses the organizational structure, responsibilities. Procedures and other information about plans for quality. If this changes during the project. Which of the following plans will also change?
Select one
All of the following are not examples of quality assurance except?
Select one