Which two items best describe a Cisco IOS IP SLA responder？（）
- A、required at the destination to implement Cisco IOS IP SLA services
- B、improves measurement accuracy
- C、required for VoIP jitter measurements
- D、provides security on Cisco IOS IP SLA messages via LEAP or EAP-FAST authentication
- E、responds to one Cisco IOS IP SLA operation per port
- F、stores the resulting test statistics
正确答案:B,C
答案解析:有
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