DATA LINK LAYER WIRED NETWORKS
DATA LINK CONTROL DLC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A form of error detection that uses a system of acknowledgements and timeouts.
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Echo Check
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Automatic Repeat ReQuests (ARQ)
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Check Digit
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None of the above
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Explanation:
Detailed explanation-1: -ARQ (Automatic Repeat reQuest) is an error control and packet recovery method for data transmission in which the receiver sends an alert to the sender if a packet is missing, so that the sender can resend the missing packet.
Detailed explanation-2: -ARQ is also called Positive Acknowledgement with Retransmission (PAR). ARQs are used to provide reliable transmissions over unreliable upper layer services. They are often used in Global System for Mobile (GSM) communication.
Detailed explanation-3: -Automatic Repeat ReQuests (ARQ) This form of error detection uses a system of acknowledgements and timeouts. Automatic Repeat ReQuests are often used to ensure reliable transmissions over an unreliable service.
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