单项选择题 Jitter is causing problems with the VOIP application in the Company network.  What causes  network jitter？（）

单项选择题 Refer to the exhibit. A trunk link is connected between switch A_SW and switch D_SW. Based on  the configuration shown in the exhibit，  how would the traffic coming from the switch A_SW be  managed？ （）

单项选择题 Refer to the exhibit.  Which statement is true when voice traffic is forwarded on the same VLAN  used by the data traffic？ （）