单项选择题
Refer to the exhibit. Which option correctly describes the order of signaling and call processing events when a branch employee calls headquarters?（）
A.P，S，T，U B.U，T，S，P C.S，U，P，T D.P，U，S，T E.S，P，U，T F.S，P，T，U
多项选择题 Refer to the exhibit. Which three options are available when the Cisco Wireless Control System （WCS） discovers rogue access points on the LAN？（）
多项选择题 Inwhichthreenetworktechnologiesistrafficshapingusedtopreventandmanagecongestion？（）
单项选择题 Whatbestdescribesprocessingdelay？（）
