ID とアクセス管理のコンテキスト内で「フェデレーション」が指す可能性が最も高いのは次のうちどれですか?
正解:B
Federation is a system of trust between two parties for the purpose of authenticating users and conveying information needed to authorize their access to resources. By using federation, a user can use one set of credentials to access multiple domains that trust each other.