Explain ARQ
Explain the term ARQ.
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Error control within the data link layer is based upon the Automatic repeat request (ARQ) that means retransmission of the data in below given 3 cases: a) Lost frame
b) Damaged frame
c) Lost acknowledgment.
Tunneling: Tunneling is a method given to transfer data securely among two networks. The data is divided into smaller packets and passed via the tunnel. The data passing via the tunnel has 3 layers of encryption. The data is encapsulated. Tunneling ca
Explain the term Round Trip Time?
Parity and Checksums: Noise and momentary electrical disturbances might cause data to be modified as it passes via a communications channel. When the receiver fails to notice this, the received message will be wrong, resultant in possibly severe conse
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Define application gateway?
Explain what do you mean by the term carrier sense in CSMA/CD?
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