New PMP Question & Answers with explanation

Your hardware vendor left you a voicemail saying that a snowstorm in the Midwest might prevent your equipment from arriving on time and they are watching the weather closely. She wanted to give you a heads-up and asked that you return the call. Which of the following statements is true?
Select one
You've identified a risk event on your current project that could save $500,000 in project costs if it occurs. Your organization is considering hiring a consulting firm to help establish proper project management techniques in order to ensure it realizes these savings. Which of the following is true based on this statement?
Select one
You've identified a risk event on your current project that could save $100,000 in project costs if it occurs. Which of the following is true based on this statement?
Select one
Your project has a high degree of uncertainty about the project requirements. You decide to use an agile approach to manage the project in order to achieve which of the following?
Select one
You are using criticality analysis to determine risk impact. You have calculated an index for each risk and realize the more activities the risk impacts, the higher the index. The index is used as an input to a simulation. Which risk does criticality analysis assess?
Select one