New PMP Question & Answers with explanation

Anne is the project manager of a project. She has evaluated certain responses from prospective sellers and wants to select a contract model that will transfer risk to the seller. Which of the following should she select in order to achieve this?
Select one
Which of these is accurate regarding risk management?
Select one
Which of these is a valid negative risk response?
Select one
A project manager has decided to use a decision tree to do a build or upgrade analysis. The build requires an investment of $200M. On the build decision branch, there is a 60 percent probability of strong demand (yielding a revenue of $400M) and a 40 percent probability of weak demand (yielding a revenue of $150M). What is the expected monetary value (EMV) of the build?
Select one
Identification of new risks, reassessment of old risks, and closing of outdated risks are part of the Monitor Risks process. How often should project risk reassessment be scheduled?
Select one