Which process covers the work done by external suppliers who may NOT be using PRINCE2?

Which describes a risk effect?

During the 'initiating a project' process, who specifies the required level of management control?

Which is NOT an objective of the Controlling a Stage process?

What should be recorded in a quality register?
1. Activities to ensure the products are fit for purpose
2. Identified threats and opportunities
3. Problems and concerns to be managed informally
4. Roles responsible for reviewing the project's products