单选题What are the basic configuration steps to enable IS - IS?（）AConfigure the net system - id command under routerisis and enable IS - IS on each interface with the ip router isis command.BConfigure the net sy stem - id and the network net - id commands under routerisis.CConfigure the network net - id command(s) under routerisis and enable IS - IS on each interface with the ip router isis command.DConfigure the network net - id command(s) and the is - type level -1- 2 command under routerisis.EConfigure the net system - id and the network net - id commands under routerisis and enable ISIS on each interface with the ip router isis command.
单选题
What are the basic configuration steps to enable IS - IS?（）
A
Configure the net system - id command under routerisis and enable IS - IS on each interface with the ip router isis command.
B
Configure the net sy stem - id and the network net - id commands under routerisis.
C
Configure the network net - id command(s) under routerisis and enable IS - IS on each interface with the ip router isis command.
D
Configure the network net - id command(s) and the is - type level -1- 2 command under routerisis.
E
Configure the net system - id and the network net - id commands under routerisis and enable ISIS on each interface with the ip router isis command.
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