1. Answer: B and C. The business process flow will not be used if it does not belong to the model-driven app and if users do not have privileges on the business process flow entity in their security role.
2. Answer: D. Setting the data step to required prevents the user from moving to the next stage if the field is empty. Setting the field to business required will prevent a record from being created. 
3. Answer: C. A business process flow can have 30 stages each with 30 steps.
4. Answer: A. A field used in a condition must be a data step in the stage before the condition.
5. Answer: B. Workflows must be configured to run on demand to be used in a business process flow. They can be either real-time or background.
6. Answer: C. Creating a business process flow creates an entity that holds details of which stage each instance of a business process has reached. The entity is named after the business process flow. You should create your chart on this entity.
7. Answer...