Based on the following show output, which statement is true? (Exhibit)
WG1S1#sh mls qos interface fa0/1
FastEthernet0/1
trust state: not trusted
trust mode: trust cos
COS override: dis
default COS: 0
pass-through: none
trust device: cisco-phone
A.
DSCP markings from the Cisco IP Phone are trusted.
B.
A Cisco IP Phone is not connected to the fa0/1 switch port.
C.
All incoming CoS markings are trusted.
D.
All incoming DSCP markings are trusted.
Explanation:
mls qos trust [ cos ] :
By default, the port is not trusted. All traffic is sent through one egress queue. Use the cos keyword to classify ingress packets with the packet CoS values. The egress queue assigned to the packet is based on the packet CoS value. When this keyword is entered, the traffic is sent through the four QoS queues.
The Output shown that Phone is not connected with Switch Port.