New PMP Question & Answers with explanation

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
Cloud Divine is a startup company that provides SaaS using cloud computing. The first major project launched by the company involved a high degree of ambiguity and experienced issues, including a large number of changes to the project deliverables, nearly resulting in a failed project. All projects within the company are managed using a predictive life-cycle approach. What is the most likely cause for the high degree of issues experienced in the project?
Select two