To ensure ProfiNET Layer 2 Class-of-Service markings from ProfiNET devices are trusted
by the switch, which command must be entered on the interface attached to the device?
A.
switch(config-if)#mls qos trust cos
B.
switch(config-if)#qos trust cos
C.
switch(config-if)#profinet cos trust
D.
switch(config-if)#trust qos cos