Which two actions should you recommend?

You are an administrator for a company named Contoso, Ltd.
Contoso has an Exchange Server 2013 organization.
Contoso has a partnership agreement with a company named A . Datum Corporation. A. Datum has
an Exchange server 2013 organization.
Both organizations have a federation trust to the Microsoft Federation Gateway. Users at Contoso
plan to share their free/busy information with users at A. Datum.
You need to recommend which tasks must be performed to ensure that the A. Datum users can see
the free/busy information of the Contoso users.
Which two actions should you recommend? (Each correct answer presents part of the solution.
Choose two.)

A.
In the Exchange Server organization of Contoso, configure directory synchronization.

B.
In the Exchange Server organization of A. Datum, create a sharing policy.

C.
In the Exchange Server organization of A. Datum, configure directory synchronization.

D.
In the Exchange Server organization of Contoso, create an organization relationship.

E.
In the Exchange Server organization of Contoso, create a sharing policy.

F.
In the Exchange Server organization of A. Datum, create an organization relationship.

Explanation:
Business-to-business calendar sharing is set up by creating organization relationships. User-to-user
calendar sharing is set up by applying sharing policies.
There is no requirement for Contoso users to view the free/busy information of the A.Datum users.
Therefore, we don’t need to create an organization relationship in A.Datum.
Configure Federated Sharing Step 1: Create and configure a federation trust (this has already been
done here) Step 2 (D): Create an organization relationship An organization relationship enables users
in your Exchange organization to share calendar free/busy information as part of federated sharing
with other federated Exchange organizations.
Step 3 (E): Create a sharing policy Sharing policies enable user-established, people-to-people sharing
of both calendar and contact information with different types of external users. They support the
sharing of calendar and contact information with external federated organizations, external nonfederated organizations, and individuals with Internet access. If you don’t need to configure peopleto-people or contact sharing (organization-level sharing only), you don’t need to configure a sharing
policy. Step 4: Configure an Autodiscover public DNS record
Note: With federated sharing, users in your on-premises Exchange organization can share free/busy
calendar information with recipients in other Exchange organizations that are also configured for
federated sharing. Free/busy sharing can be enabled between two organizations running Exchange
2013 and also between organizations with a mixed Exchange deployment.