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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
参考答案
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data linkB
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单选题Which layer of the OSI reference model is responsible for ensuring reliable end-to-end delivery of data?（）A
ApplicationB
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SessionD
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transportD
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