You have an Exchange Server 2010 organization. Your company acquires another company that has
an Exchange Server 2010 organization. You need to recommend a solution for the Exchange Server
2010 organization to meet the following requirements:
• All users must be able to view the global address lists (GALs) for both organizations
• All users must be able to view free/busy information for users in both organizations
What should you include in the solution?

A.
Implement Active Directory Federation Services (AD FS).
Run the Microsoft Exchange Inter-Organization Replication tool

B.
Implement Microsoft Identity Lifecycle Manager (ILM) 2007.
Create a two-way cross-forest trust between both organizations

C.
Create a federation trust between both organizations.
Implement Microsoft Identity Lifecycle Manager (ILM) 2007.
Run the New Organization Relationship wizard

D.
Create a two-way cross-forest trust between both organizations.
Implement Active Directory Federation Services (AD FS).
Run the Microsoft Exchange Inter-Organization Replication tool

Explanation:
Identity Lifecycle Manager (ILM) 2007 enables IT organizations to reduce the cost of managing the
identity and access lifecycle by providing a single view of a user’s identity across the heterogeneous
enterprise and through the automation of common tasks. ILM 2007 builds on the metadirectory and
user provisioning capabilities in Microsoft Identity Integration Server 2003 (MIIS 2003) and adds new
capabilities for managing strong credentials such as smartcards with Certificate Lifecycle Manager
2007 (CLM 2007). ILM 2007 provides an integrated approach that pulls together metadirectory,
certificate and password management, and user provisioning across Windows® and other enterprise
systems. ILM 2007 has two central components, one that includes metadirectory and user
provisioning capabilities and another for certificate and smart card management.