单项选择题
A. The packets have exceeded the time-to-live value.
B. There is a loop.
C. The asterisks indicate a response time out.
D. The asterisks indicate that the traceroute is completed.
单项选择题 Referring to the exhibit, what is the purpose of the targets section of the configuration?（）
单项选择题 Referring to the exhibit, which command would you use to add an additional address to the ge-0/0/9.0 interface?（）
单项选择题 An administrator is unable to ping any address on the 10.0.19.0/24 subnet. To identify the problem, the administrator uses the command shown in the exhibit. Which step should be taken to solve the problem?（）
