Which social network is available in the Lightning Experience and Salesforce1?

What layer of model-view-controller paradigm are standard or custom objects associated with?

An app builder has a custom component they want to make available on the utility bar, but the component is unavailable.
How should the component be tagged?

A new custom object is begin created with a private sharing setting. The business wants to share individual records with specific people or groups of people on a case-by-case basis.
Which three options does the business user have to manually share individual records? (Choose three.)

Which two are true statements about record types? (Choose two.)