In a connectionless system, which of the following is correct?


The destination is contacted before a packet is sent.
The destination is not contacted before a packet is sent.
The destination sends an acknowledgement to the source that indicates the packet was received.
The destination sends an acknowledgement to the source that requests the next packet to be sent.

ccna exploration 1 chapter 5 Exam Question And Answers 

In a connectionless system, which of the following is correct?

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