Which layer of the OSI reference model is responsible for ensuring reliable end-to-end delivery of data?（）
- A、Application
- B、Presentation
- C、Session
- D、Transport
- E、Network
- F、Data-Link
正确答案:D
答案解析:有
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Which layer of the OSI reference model is responsible for ensuring reliable end-to-end delivery of data?（）
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