New PMP Question & Answers with explanation

Which of the following might require re-baselining of the cost baseline?
Select one
You are a project manager for Laurel's Theater Productions. Your new project is coming in over budget and requires a cost change through the cost change control system. You know which of the following statements are true regarding Control Costs?
Select three
You are a project manager for Dutch Harbor Consulting. Your latest project involves the upgrade of an organization's operating system on 236 servers. You performed this project under contract. You are closing out the project and the procurement and know that you should document and file which of the following?
Select two
You are the project manager for a top-secret software project for an agency of the U.S. government. Getting top-secret clearances for contractors takes quite a bit of time and waiting for clearances could jeopardize the implementation date. Your mission—should you choose to accept it—is to complete the project using internal resources. Your agile programmers are 80 percent of the way through the programming and testing when your agency appoints a new executive director. Your programmers are siphoned off this project to work on the executive director's hot new project before they finish this project. Which of the following are true regarding this question?
Select two
You are a project manager for Dakota Software Consulting Services. You're working with a major retailer that offers online and in retail stores. You're using a performance review to examine elements such as actual start and end dates for schedule activities. You also used SV and SPI calculations to determine the impact of schedule variations, which are more than the stakeholders will tolerate. Rumors have started and stakeholders have heard there might be a schedule delay. They've asked for a full report on the situation. Which of the following are true regarding this scenario?
Select two