When analog signals are digitized using the G.711 codec， voice samples are encapsulated into protocol data units （PDUs） involving which three headers？ （）
- A、IP
- B、TCP
- C、RTP
- D、UDP
- E、H323
- F、CRTP
正确答案:A,C,D
答案解析:有
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思科认证考试
思科认证考试
When analog signals are digitized using the G.711 codec， voice samples are encapsulated into protocol data units （PDUs） involving which three headers？ （）
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