单项选择题 YouareabouttomigrateacustomernetworktouseaVSS.WhichofthesestatementsistrueaboutaVSS？（）

多项选择题 Refer to the exhibit.From the MAC addresses shown in the command output，to which two ports is the multicast stream 225.230.57.199 being forwarded on this switch？（）

单项选择题 Refer to the exhibit. When applying this hierarchical policy map on the on the tunnel1 interface, you measure high jitter for traffic going through class 1234. What is the most likely cause of this jitter?（）