Exam 200-301 topic 1 question 42 discussion

C is the right answer

C is correct

Ref: TCP vs UDP - Difference and Comparison | Diffen “… Comparison chart … Error Checking TCP does error checking and error recovery. Erroneous packets are retransmitted from the source to the destination. UDP does error checking but simply discards erroneous packets. Error recovery is not attempted. …” A. TCP uses retransmissions, acknowledgment, and parity checks, and UDP uses cyclic redundancy checks only Wrong answer. B. TCP uses two-dimensional parity checks, checksums, and cyclic redundancy checks, and UDP uses retransmissions only Wrong answer. C. TCP uses checksum, acknowledgements, and retransmissions, and UDP uses checksums only Correct answer D. TCP uses checksum, parity checks, and retransmissions, and UDP uses acknowledgements only Wrong answer.

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C is the only answer that makes sense. "Parity checks" isn't mentioned in the OCG.

100% is correct

C is correct

C is right.