Universal Containers (UC) uses middleware to integrate multiple systems with Salesforce. UC has a strict, new requirement that usernames and passwords cannot be stored in any UC system. How can UC's middleware authenticate to Salesforce while adhering to this requirement?

Universal Containers (UC) would like to enable self-registration for their Salesforce Partner Community Users. UC wants to capture some custom data elements from the partner user, and based on these data elements, wants to assign the appropriate Profile and Account values.
Which two actions should the Architect recommend to UC1
Choose 2 answers

An Architect needs to advise the team that manages the Identity Provider how to differentiate Salesforce from other Service Providers. What SAML SSO setting in Salesforce provides this capability?

Universal Containers (UC) wants to implement SAML SSO for their internal of Salesforce users using a third-party IdP.
After some evaluation, UC decides NOT to 65 set up My Domain for their Salesforce org. How does that decision impact their SSO implementation?

Which three types of attacks would a 2-Factor Authentication solution help garden against?