问答题
what’s IOS command ， you can see the output as below ：
show ip pim neighbor
多项选择题 WhichthreeportstatesareusedbyRSTP802.1w？（）
问答题 whatisRPF（ReversePathForwarding）？
单项选择题 Refer to the exhibit. In this network，R1 is configured not to perform autosummarization within EIGRP. What routes will R3 learn from R2 through EIGRP？（）
