我觉得这个不用深究,题的考点你已经很明白了.
multiaccess network分为广播的和非广播的.
ospf在广播网络上每10秒发一个hello,在非广播多路访问网络上每30秒发一个hello.
网上给的答案是A,说明这是个单选题.
这样的话就选A吧,只能说出题人写的不是很清楚.
通常NBMA用的不多,ospf常考的都是广播和P2P网络类型下的特性.
希望能帮到你!
What is the OSPF default frequency,in seconds,at which a cis
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