You are troubleshooting a CoS problem for packets transitioning the router. What are two useful actions? (Choose two.)

A.
Use show interfaces queue to look for policed traffic.

B.
Use monitor traffic to look for BA markings in the header of outgoing packets.

C.
Use show interfaces queue to look for dropped traffic.

D.
Use a firewall filter to check the IP precedence of incoming packets and the rewrite results for outgoing packets.