Which kind of failure loses its data in head crash or failure during a transfer operation.(a) Transaction failure(b) System crash(c) Disk failure(d) All of the mentioned

Which kind of failure loses its data in head crash or failure during a

1.	Which kind of failure loses its data in head crash or failure during a transfer operation.(a) Transaction failure(b) System crash(c) Disk failure(d) All of the mentioned
Answer» Right choice is (c) Disk failure The best explanation: Copies of the data on other disks, or archival backups on tertiary media, such as DVD or tapes, are used to recover from the failure.