What are benefits of deploying Knowledge in a high volume Service Cloud portal? (Choose 2)

Universal Containers has recently implemented a Customer Community to allow its customers to create and update their cases online. What should a consultant recommend to ensure CustomerCommunity users are able to access only their cases online, including cases created by the support team on their behalf over the phone?

The contact center at Universal Containers offers support through phone, email, public website, and a Community. The contact center manager wants to demonstrate the success of recent self-service initiatives to executive management. Which two reports should the contact center manager present to executive management? Choose 2 answers

A Contact Center Manager is implementing a new customer care program and wants to specifically measure customer loyalty.
Which measure can satisfy this requirement?

Universal Containers has created Permission Sets granting access to objects and fields in one of its sandboxes.
How should a consultant deploy these Permission Sets to Production?