單項選擇題

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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單項選擇題

How many OSPF authentication types can be configured on a subinterface using JUNOS software?（）

A.0
B.1
C.2
D.3

單項選擇題

What is the function of the Type 4 LSA?（）

A. Advertise cost to the ABR.
B. Summarize external routes.
C. Advertise cost to the ASBR.
D. Report a broadcast segment's DR