On wich component the QoS can be applied? (Choose Two)

A.
vserver
B.
node
C.
volume
D.
qtree
E.
aggregate
F.
LUN
G.
igroup
Explanation:
Storage QoS workload management allows you to control the resources that can be
consumed by storage objects (such as volumes, LUNs, VMDKs, or SVMs)
https://communities.netapp.com/community/netapp-blogs/sanbytes/blog/2013/10/03/howstorageqos-works
A,C
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Poor Question:
vserver,volume,LUN is correct imho
https://library.netapp.com/ecmdocs/ECMP1196798/html/GUID-4CE538C8-60E8-49B1-AD73-49879718A38B.html
You can control input/output (I/O) performance to Vservers with FlexVol volumes by assigning Vservers to Storage QoS policy groups.
cluster1::> qos policy-group create pg-vs1 -vserver vs1 -max-throughput 5000iops
cluster1::> vserver modify -vserver vs1 -qos-policy-group pg-vs1
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