問答題

what’s IOS command ， you can see the output as below ：


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1.多項(xiàng)選擇題Which three port states are used by RSTP 802.1w？ （）

A.Listening
B.Learning
C.Forwarding
D.Blocking
E.Discarding
F.Disabled

3.單項(xiàng)選擇題

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？（）

A.172.30.1.0/24 and 10.1.2.0/24；EIGRP only performs autosummarization at the edge between two major networks
B.172.30.0.0/16 and 10.1.2.0/24；R2 will perform autosummarization，although R1 will not
C.Since R2 is configured without autosummarization，it will not propagate the 172.30.1.0/24 route
D.172.30.0.0/8 and 10.0.0.0/8

4.多項(xiàng)選擇題Which three port states are used by RSTP 802.1w？（）

A.Listening
B.Learning
C.Forwarding
D.Blocking
E.Discarding
F.Disabled