Which of the following documents does a vendor rely on MOST before committing funding and resources to a project?

A customer will have ongoing changes to project requirements.
Which of the following is the BEST project management methodology for this requirement?

A vendor who is scheduled to arrive in two days encounters a delay and needs to reschedule the visit. The project manager needs a timely response from the project sponsor regarding the delay; however, the sponsor is in an all-day meeting and is not responding to email.
Which of the following is the BEST method to get the sponsor's attention?

A project sponsor has repeatedly indicated dissatisfaction with the resjits o' several projects being managed by different individuals and consisting of different teams within the organization. Which of the following is the best action for management to take NEXT?

Which of the following techniques modifies the schedule based upon resource constraints?