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
正确答案:B
答案解析:有
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