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Data link and transport layers. Which is a true statement? A. Both link layer and transport...

Data link and transport layers.

Which is a true statement?

A. Both link layer and transport layer can implement retransmissions.

B. Only one (Link or Transport) layer can implement retransmissions.

C. If link layer implements retransmissions, then transport layer does not.

D. If link layer does not implement retransmissions, then transport layer does.

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Answer #1 
Both Data link and transport layers manage flow control and error control.

so, Both link layer and transport layer can implement retransmissions.

Answer: A

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