When would you need to configure QoS preclassify?

You are designing the QoS features for a large enterprise network that includes DMVPN.

When would you need to configure QoS preclassify?
A . when you are marking packets with the DSCP bits
B . when you are marking packets with the TOS bits
C . when your service provider requires the DSCP bits be set
D . when the QoS policy cannot be based on DSCP ToS bits

View Answer

Answer: D