New PMP Question & Answers with explanation

You are the project manager for a project that will produce a mobile phone application that sends alerts when UV rays are at dangerous levels, alerting users to stay indoors. Your team has recently adopted Agile, and you have modeled your approach on that of a servant leader. Which of the following characteristics are you likely to follow?
Select three
Tom is a project manager working for a reputable editorial agency specializing in exam preparation. He and his team use Agile approaches to manage projects. Because of the company’s growth, three new project managers have been hired, and Tom has stepped up to mentor the new hires. One of the new project managers is struggling with her project and has asked Tom for help. She notes that her team is not working effectively together, frequently missing team meetings and having difficulty in reaching agreements. What can Tom suggest to turn the team around?
Select one
The company’s quality research team has been assigned to review the project materials. This team is not part of the group that developed the material. This is an example of what type of review?
Select one
A project with a CPI of 1.12 and an SPI of 0.90 is performing:
Select one
The project charter has just been approved. What comes next?
Select one