Single Sign-On (SSO) is an authentication mechanism that allows users to log in once and gain access to multiple applications without re-entering credentials. In IBM Cloud Pak for Integration (CP4I), Enterprise LDAP and OpenShift authentication both support SSO.

Enterprise LDAP (B) -- Supports SSO

Lightweight Directory Access Protocol (LDAP) is commonly used in enterprises for centralized authentication.

CP4I can integrate with Enterprise LDAP, allowing users to authenticate once and access multiple cloud services without needing separate logins.

OpenShift Authentication (E) -- Supports SSO

OpenShift provides OAuth-based authentication, enabling SSO across multiple OpenShift-integrated services.

CP4I uses OpenShift's built-in identity provider to allow seamless user authentication across different Cloud Pak components.

Analysis of the Incorrect Options:

A . 2FA (Incorrect):

Two-Factor Authentication (2FA) enhances security by requiring an additional verification step but does not inherently support SSO.

C . Plain Text over HTTPS (Incorrect):

Plain text authentication is insecure and does not support SSO.

D . Enterprise SSH (Incorrect):

SSH authentication is used for remote access to servers but is not related to SSO.

IBM Cloud Pak for Integration (CP4I) v2021.2 Administration Reference:

IBM Cloud Pak for Integration Authentication & SSO Guide

Red Hat OpenShift Authentication and Identity Providers

IBM Cloud Pak - Integrating with Enterprise LDAP