单项选择题
A.DSCP map needs to be configured for VOIP.
B.ToS has not been configured.
C.ToS has been misconfigured.
D.The command mls qos needs to be turned on in global configuration mode.
E.There is not a Cisco Phone attached to the interface.
单项选择题 Refer to the exhibit. What statement is true about the configuration on switch CAT1？（）
多项选择题 You need to configure a new Cisco router to be installed in the Company VOIP network. Which three interface commands will configure the switch port to support a connected Cisco phone and to trust the CoS values received on the port if CDP discovers that a Cisco phone is attached？ （）
多项选择题 Refer to the exhibit. Which three statements are true about trust boundaries in the campus network？（）
