Q. If the ASCII character G is sent and the character D is received, what type of error is this?

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Q. Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost ?

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Q. Parity bit is

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Q. MAC is

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Q. What operates in the Data Link and the Network layer?

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Q. An error detecting code is which code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as

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Q. Error detection at the data link level is achieved by?

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Q. Which of the following summation operation is performed on the bits to check an error-detecting code?

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Q. If the ASCII character H is sent and the character I is received, what type of error is this?

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Q. The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?

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Q. Error detecting code is

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Q. If odd parity is used for ASCII error detection, the number of 0s per eight-bit symbol is _____.

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Q. In cyclic redundancy checking, the divisor is _____ the CRC.

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Q. In cyclic redundancy checking what is the CRC?

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Q. In CRC the quotient at the sender

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Q. Which layer of international standard organization's OSI model is responsible for creating and recognizing frame boundaries?

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Q. The data-link layer, in reference to the OSI model, specifies

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Q. What function does a serial interface perform in data communication?

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Q. Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undeleted error?

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Q. Piggybacking protocol is a technique used for

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