Which of the following is a prerequisite for configuring single sign-on for authentication using LTPA cookies?

Which of the following is a prerequisite for configuring single sign-on for authentication using LTPA cookies?
A . All server must use the same IBM HTTP Server.
B . All servers must be configured as part of the same DNS domain.
C . All servers must use an IBM Domino Directory thatis configured for LDAP access.
D . All servers must be managed by the same IBM WebSphere Application Server Deployment Manager.

Answer: B

Explanation:

To take advantage of support for SSO between WebSphere Application Servers or between WebSphere Application Server and a Domino server, applications must meet the following prerequisites and conditions:

*Verify that all servers are configured as part of the same DNS domain.

* Etc.

References:https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/csec_sso.html