单项选择题 A standalone wireless AP solution is being installed into the campus infrastructure. The access points appear to boot correctly， however， wireless clients are not obtaining correct access. You verify that the local switch configuration connected to the access point appears as the following：  interface ethernet 0/1  switchport access vlan 10  switchport mode access  spanning-tree portfast  mls qos trust dscp  What is the most likely issue causing the problem？（）

单项选择题 A campus infrastructure supports wireless clients via Cisco Aironet AG Series 1230， 1240， and 1250 access points. With DNS and DHCP configured， the 1230 and 1240 access points appear to boot and operate normally； however， the 1250 access points do not seem to operate correctly.  What is the most likely issue causing this problem？（）

单项选择题 You work as a network engineer for . You study the exhibit carefully.  What happens when the switch 2 is connected to the rest of the network in the VTP domain Lab_Network？（） Exhibit：