单项选择题
Why does RSTP have a better convergence time than 802.1D？（）
A.it is newer
B.it has smaller timers
C.it has less overhead
D.it is not timer-based
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相关考题
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单项选择题
Refer to the exhibit. Which of these is applied to the Bearer class？（）
A.WRED
B.traffic shaping
C.packet marking
D.packet classification
E.FIFO queuing within the class -
单项选择题
Refer to the exhibit. Which switching feature is being tested？（）
A.loop guard
B.PortFast
C.root guard
D.BDPU guard -
问答题
R1（AS1）------R2（AS2）-----R3（AS2）----R4（AS2） ，R1在AS1，R2，R3，R4在AS2，R1和R2建EBGP ， R2和R3 IBGP，R3和R4 IBGP，产生BGP路由从R1传给R2，问这条路有会不会在R4上出现，如果不会，怎么解决.
