New PMP Question & Answers with explanation

A project manager is working through potential options using a decision tree. Scenario A has a failure impact of –$5,000 with a probability of 25 percent, and no impact if successful; and scenario B has a failure impact of –$3,500 with a probability of 65 percent, and no impact if successful. Which scenario should the project manager choose?
Select one
Around 2:37 p.m., Bruce Bethor, the project manager for Happy Holiday Cruise Ships, Inc., walks around the office to interact with each member of his team. The majority of his team members enjoy this type of informal interaction because it gives them an opportunity to bring up issues they may have forgotten to mention during the morning meetings or those issues that were recently uncovered during the day. Which of the following techniques does Bruce use to stay in touch with the work and attitudes of his project team members?
Select one
When should Agile teams hold retrospectives?
Select three
During the execution phase of a biotech project, a new issue has surfaced. What is one of the first things that the project manager should do?
Select one
A project manager of Cyber Channels Inc. is in the process of assigning resources to her current project. At the end of the day, she receives an angry call from the director of engineering, who is upset that his senior systems administrator was assigned to the project without his consent. At this stage, what should the project manager do to keep this resource?
Select one