单项选择题 When you enter the interface command auto qos voip cisco-phone on a port at the edge of a network,how does the Cisco Catalyst switch detect if a Cisco IP Phone is connected to the port?（）

多项选择题 Refer to the exhibit. Users complain that they intermittently lose data and connections to important servers. After investigation, you discover that the 802.1Q trunk between DSW111 and ASW1 is down. Even though the HSRP group 11 is being serviced by DSW112, you discover that the SVI for VLAN 11 is in the up state on DSW111. Which three Cisco Catalyst IOS commands should you use on DSW111 to find the source of this problem? （）(Choose three.)

单项选择题 What is a primary objective of the security architecture assessment? （）