Q. Which of the following signal is not standard RS-232-C signal?

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Q. While transmitting odd-parity coded symbols, the number of zeros in each symbol is:

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Q. When the receiver sees five consecutive incoming '1' bits followed by a '0' bit it automatically destuffs ................... in bit stuffing.

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Q. If source machine sends independent frames to destination machine without having acknowledgment, this service is .................

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Q. SEND and RECEIVE primitives are called as ................. primitives.

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Q. CONNECT and DISCONNECT primitives are called as ..................... primitives.

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Q. The end points of a transport connection are called .....................

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Q. BSC stands for ..................

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Q. HDLC is an acronym for ....................

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Q. Sending of a IP packet from host 1 to host 2 where both are of same LAN but the packet is transferred through different intermediate LANs is called ..................

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Q. In CRC there is no error if the remainder at the receiver is _____.

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Q. Which of the following refers to the terms "residual error rate"?

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

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Q. An error-detecting code inserted as a field in a block of data to be transmitted is known as

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Q. Error rate is

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Q. Error detection at a data link level is achieved by

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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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