What is a possible reason for the failure?

In a Dell EMC NetWorker environment, the daily scheduled backup was started. However, the backup failed without mounting the device.

What is a possible reason for the failure?
A . Volumes labeled in the required pool are appendable
B . Protection group is not selected on the pool
C . Devices do not have volumes that match the pool required by the backup request
D . Tape devices attached to the NetWorker server are showing recyclable

View Answer

Answer: D