(e) Asynchronous Replication: Compared to synchronous replication technique such ‘‘Mirroring’’ and/or Striping, NoSQLs employ asynchronous replication, allowing writes to complete faster and smoother as they are independent of network traffic. However, the limitation of asynchronous replication is that data is not immediately replicated and could be lost in certain windows. Further locking is generally not available for protecting copies of a specific unit of data.