MadeEasy Subject Test 2019: Computer Networks - Flow Control Methods

Question

Here in LIST—II,i think point 1,2 is true for all the protocols.

please confirm!

Comments

Yes I'm also think  1 and 2 is true for all protocols

Btw answer is B right ??

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yeah...ans given is B.

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In selective repeat we resend the data if we receive a NACK before a TO.

And coming to 2nd statement "Acknowledgment sent when data are delivered to N/W layer" it means immediate ack but not cumulative ack right?