Your network contains an Active Directory forest named contoso.com and two Active Directory sites named Site1 and Site2. You plan to deploy an Exchange Server 2010 Service Pack 1 (SP1) organization. An independent consultant recommends a design for the Exchange Server 2010 SP1 deployment as shown in the following table.
You are evaluating the implementation of the Hub Transport server role on EX4. You need to identify which Exchange server configuration will minimize the loss of email messages sent between users of the organization if a Hub Transport server fails.
What should you identify?
A.
a database availability group (DAG)
B.
a DNS server on DC2
C.
a Hosts file on EX1, EX2, EX3, and EX4
D.
a single copy cluster (SCC)
E.
an activation preference for a database
F.
Datacenter Activation Coordination (DAC) mode
G.
delayed acknowledgments (ACKs)
H.
DNS round robin on DC1 and DC2
I.
EdgeSync synchronization
J.
Edge Transport server cloned configuration
K.
local continuous replication (LCR) on EX1, EX2, EX3, and EX4
L.
shadow redundancy
Answer is “L”.
I would consider a DAG because there is only one transport server per site. Since a mailbox server can only drop messages to a transport server in the same site, you could switchover the database within the DAG zo all mailboxes reside in the same AD site.
Shadow redundancy is on by default as far as I know?