试题详情
- 单项选择题Which of the following is an OSPF configuration parameter that is used on an ABR, but not on an internal router？（）
A、A virtual link to area 0.
B、OSPF summarization command.
C、default - cost extension to the area command.
D、no - summary extension to the area stub comm and.
E、None of the other alternatives apply
- D
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