Use the information in the image below to identify two reasons their backups are still slow.

Your customer has purchased their brand new Exadata Database Machine X3-2 Full rack to
achieve 20-TB-per-hour backups on their 300 TB database.

You have been called to determine why they are not able to achieve even half that rate. Use the
information in the image below to identify two reasons their backups are still slow.

A.
LVM snapshots are not configured properly on the Database Server.

B.
The Media Server to Tape Library transfer is causing a bottleneck.

C.
The number of tape drives is causing a bottleneck.

D.
Exadata backups are being performed using RMAN over the 10 Gigabit Ethernet network.

E.
The number of database servers is causing a bottleneck.

Explanation:
The following bottlenecks will be reached first if using InfiniBand fabric to media
server:
1. Media server to tape library SAN transfer rate
2. Number of tape drives