RIP version 2 is being used as the routing protocol within the Testking network.What does RIP version 2 use to prevent routing loops?（）
- A、CIDR
- B、Split horizon
- C、Authentication
- D、Classless masking
- E、Hold-down timers
- F、Multicast routing updates
- G、Path Vectoring
正确答案:B,E
答案解析:有
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