You have an Exchange Server 2013 Database Availability Group (DAG).
Each member of the DAGhas two Network Interfaces named Network1 and Network2.
Network1is used for Client Connections.
Network2is used for Database Replication.
Network2 fails.
You discover that replication traffic is sent over Network1.
You need to ensure that all of the Database Replication traffic is sent over Network2.
The solution must minimize Database Replication downtime.
Which three actions should you perform?
Answer: 
Explanation:
Box 1:Run the Suspend-MailboxDatabaseCopycmdlet.
Box 2:Restore the connectivity to Network2.
Box 3:Run the Resume-MailboxDatabaseCopycmdlet.
Note:
You may need to suspend or resume a Database Copy for a variety of reasons,
such as maintenance on the disk that contains a Database Copy,
or suspend an individual Database Copy from activation for Disaster Recovery purposes.
This example suspends Continuous Replication for a copy of the
Database DB1 hosted on Server MBX1.
An optional comment has also been specified.
Suspend-MailboxDatabaseCopy -Identity DB1\MBX1 -SuspendComment “Maintenance on MBX1” -Confirm:$False
This example resumes a copy of the database DB1 on the server MBX1.
Resume-MailboxDatabaseCopy -Identity DB1\MBX1
Reference: Suspend or Resume a Mailbox Database Copy