单项选择题
Which command would initiate a loopback on a Gigabit Ethernet interface ge-0/0/0?（）
A.# set interfaces ge-0/0/0 unit 0 loopback B.# set interfaces ge-0/0/0 gigether-options loopback C.> set interfaces ge-0/0/0 loopback D.> loopback ge-0/0/0
多项选择题 If you want to test if fragmentation is causing problems on the network, which two ping command options are useful?（）
多项选择题 Which two statements regarding traceroute on JUNOS devices are correct?（）
单项选择题 The monitor traffic command provides access to which utility?（）
