| Subject | English | Urdu |
| comp., MS | cluster continuous replication | کلسٹر کی لگا تار تجدید (A replication that combines the asynchronous log shipping and replay features built into Exchange 2007 with the failover and management features provided by a failover cluster that is created with the Microsoft Windows Cluster service) |
| comp., MS | single copy cluster | ایک کاپی والا کلسٹر (A clustered Exchange deployment that uses shared storage and can have multiple active and passive servers (referred to as nodes) dedicated to a clustered mailbox server) |