A subscription-based media company’s system landscape forces many subscribers to maintain multiple accounts and to login more than once. An Identity and Access Management (IAM) system, which supports SAML and OpenId, was recently implemented to improve the subscriber experience through self-registration and single sign-on (SSO). The IAM system must integrate with Salesforce to give new self-service customers instant access to Salesforce Community Cloud. Which two requirements should the Salesforce Community Cloud support for self-registration and SSO? (Choose two.)