Refer to the exhibit. What will the class map do if a packet arrives that is marked with a CoS of 6
and a DSCP value of EF?
A.
The class map will match the packet and forward it to the policy map to be marked.
B.
The class map will not map the packet and no QoS will be applied
C.
The class map will wait for the next packet in the stream to see if it has a CoS marking of 5 and
then forward both packets to the policy map.
D.
For the packet to be forwarded to the policy map, it must have either a CoS of 5 or a DSCP
value of EF.
Explanation:
If there is no match for a packet, no QoS processing occurs on the packet and the
switch offers best-effort service to the packet.
http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_25_see/config
uration/guide/swqos.html