B. Federation is an arrangement that can be made among multiple enterprises (such as Facebook and Yahoo) that lets subscribers of one service use the same identification/authentication credentials to gain access to the second organizations resources. It differs from single sign-on (SSO) in that SSO is used within a single organization. Examples of SSO include Kerberos and Sesame. Answer A and C are incorrect as a transitive trust is a two-way relationship automatically created between parent and child domains. A non-transitive trust is a trust that will not extend past the domains it was created with. Both of these terms are directly associated with Microsoft operating systems. Solution B. Federation is an arrangement that can be made among multiple enterprises (such as Facebook and Yahoo) that lets subscribers of one service use the same identification/authentication credentials to gain access to the second organizations resources. It differs from single sign-on (SSO) in that SSO is used within a single organization. Examples of SSO include Kerberos and Sesame. Answer A and C are incorrect as a transitive trust is a two-way relationship automatically created between parent and child domains. A non-transitive trust is a trust that will not extend past the domains it was created with. Both of these terms are directly associated with Microsoft operating systems..