Which option describes the effect of using softphones instead of VoIP handsets on QoS
implementation for the voice traffic?
A.
It provides a Layer 2 CoS marking in the frames that can be used for QoS implementation.
B.
Using softphones means that 802.1Q tagging must be configured between the PC and the
switch.
C.
The voice traffic of softphones is mixed with data traffic of PC on the access VLAN.
D.
By using softphones, the implementation of a QoS depends only on trusting DSCP markings
set by the PC.
C
the voice traffic is mixed with data traffic on the access VLAN
There is not a Layer 2 CoS marking in the frames, which means that implementation of a
QoS policy for the voice traffic either depends on trusting DSCP markings set by the PC
or on classification and marking of the traffic by the access switch.