Exhibit 
Which command will ensure that Company2 will be the primary router for traffic using the gateway address of 172.16.15.20？ （）
- A、 On R2 add the command standby 1 priority 80
- B、 On R1 add the command standby 1 priority 110
- C、 On R1 add the command standby 1 priority 80
- D、 On R2 remove the command standby 1 preempt
正确答案:C
答案解析:有
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