Which three components are part of the Intelligent Network Services provided by the Cisco AVVIDframework？ （）
- A、 IP telephony
- B、 security
- C、 IP multicasting
- D、 QoS
正确答案:B,C,D
答案解析:有
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Which three components are part of the Intelligent Network Services provided by the Cisco AVVIDframework？ （）
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