What will happen after redistributing other routing protocol routes into OSPF? （）
A. miss the metric option in the redistribute command. B. misconfigure the metric- type option in t he redistribute command to type - 1. C. miss the subnet option in the redistribute command. D. miss the tag option in the redistribute command.
Based on the show ip route isis output on R1, which statement is true? （）
A. The i su 10.1.0.0/23 route is a suppressed route. B. The i su 10.1. 0.0/23 route is a summary route. C. The i su 10.1.0.0/23 route is an IS - IS external route. D. The R1 IS - IS router is an ASBR. E. The R1 IS - IS router is an ABR that belongs to multiple IS - IS areas. F. The R1 IS - IS router is performing route aggregation and is suppressing the more specific 10.1.0.0/23 prefix.
Given the network diagram, which routers currently make up the IS - IS backbone?（）
A. R3,R4,R6 B. R2,R3,R6,R7 C. R1 through R8 D. R3,R4,R5,R6 E. R2,R3,R4,R6,R7
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