单选题Within IS-IS, the restart helper performs which task?（）A It sends CSNPs to the restarting router.B It periodically sends TLV 211 to the restarting router.C It informs other routers in the domain that a router has restarted.D It tears down adjacency and
题目
单选题
Within IS-IS, the restart helper performs which task?（）
A
It sends CSNPs to the restarting router.
B
It periodically sends TLV 211 to the restarting router.
C
It informs other routers in the domain that a router has restarted.
D
It tears down adjacency and sends its entire database after 30 seconds.
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参考答案和解析
正确答案：
A
解析：
暂无解析