New PMP Question & Answers with explanation

As an experienced PMP, you have found that running a WBS meeting is tricky because you need to find a balance between insufficient decomposition and excessive decomposition. When items are excessively decomposed, it leads to all the following except:
Select one
Project stakeholders are individuals and organizations who are actively involved in the project or who have an interest in it. Which of the following is not an internal stakeholder?
Select one
The agile technique of on-demand scheduling is not suitable when:
Select one
What is the best way to make an accurate forecast of ETC?
Select one
Which of the following is not true about the WBS?
Select one