单项选择题
What type of router cannot exist within a stub area？（）
A. ABR
B. ASBR
C. internal router
D. non-backbone router
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相关考题
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单项选择题
IfallOSPFroutersonabroadcastnetworkhavethesameOSPFpriority，whatparameterisusedtodeterminethenewBDRatthetimeofaDRfailure？（）
A. area ID
B. router ID
C. loopback address
D. IP address of interface on broadcast network
