New PMP Question & Answers with explanation

Your company requires that before you purchase any routers or switches for the data center you are building, you need to solicit quotes from three separate suppliers prior to submitting the purchase request to the finance department. This policy belongs to:
Select one
You have received a proposal for an RFP that was sent to vendors. One of the vendors has proposed doing the project for $12,500. The cost for the project is $10,000, and their profit will be $2,500. Which type of contract is most suitable if the type of work is predictable and the requirements are well-defined and not likely to change?
Select one
Which of the following is not a tool or technique of the Control Procurements process?
Select one
Which of these is not an input to the Control Procurements process?
Select one
Which of the following roles in a project is most likely to be involved in negotiations on procurements during the Conduct Procurements phase?
Select one