Which of the following describe the process identifier that is used to run OSPF on a router?

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问题 Which of the following describe the process identifier that is used to run OSPF on a router?

选项 A、It is locally significant.
B、It is globally significant.
C、It is needed to identify a unique instance of an OSPF database.
D、It is an optional parameter required only if multiple OSPF processes are running on the router.
E、All routers in the same OSPF area must have the same process ID if they are to exchange routing information.

答案A,C

解析 OSPF的进程号只在本地有效。在一台路由器上需要为每个进程维护各自的OSPF数据库。
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