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
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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?（）
A. ttl
B. size
C. rapid
D. do-not-fragment -
多项选择题
Which two statements regarding traceroute on JUNOS devices are correct?（）
A.Traceroute transmits ICMP echo-request packets.
B.Traceroute transmits UDP packets.
C.Traceroute receives ICMP echo-reply packets.
D.Traceroute receives ICMP port-unreachable packets. -
单项选择题
The monitor traffic command provides access to which utility?（）
A.tcpdump
B.telnet
C.traceroute
D.netstat
