Universal containers allows users to create standard reports on demand. What are two considerations users should be aware of when creating a new report?

Which values must be defined when creating a new Opportunity stage? Choose 3

Your company has a Custom Object called Projects with a Lookup relationship to Opportunities. Once an Opportunity is closed won a project needs to be created automatically and assigned to a queue.
How would you best accomplish this requirement?

What type of relationships can you create on External Objects? (Choose all that apply.)

A user has requested a field that counts the number of child records associated with a custom object. These custom objects have a lookup relationship between each other.
Which feature would best accomplish this requirement?