Refer to the exhibit.

Which statement is true about the configuration that is shown?

A.
Untagged ingress traffic will be dropped.

B.
Ingress traffic from the host will be tagged with the CoS value of 5.

C.
Tagged and untagged ingress traffic will be carried on VLAN 1.

D.
Untagged ingress traffic will be marked with the default CoS value of the port.

Explanation:
The “Switchport voice vlan vlan-id dot1q” command enables voice VLAN on switch port and
associated VLAN.
The “mls qos trust cos” command enables QoS (Quality of Services ) based on COS (Class
of service)
The “switchport priority cos <priority>” value sets the priority values to frame coming from PC
to switch port. Since this has not been explicitly configured, the default CoS value of the port
will be used.