Computer Network Mcqs

Page No. 7

The technique of temporarily delaying outgoing acknowledgements so that they can be hooked onto the next outgoing data frame is called ____________


apiggybacking


b cyclic redundancy check


cfletcher’s checksum


dparity check


View Answer piggybacking

Which of the following is the multiple access protocol for channel access control?


aCSMA/CD


bCSMA/CA


cBoth CSMA/CD & CSMA/CA


d HDLC



Which of the following is a data link protocol?


a ethernet


bpoint to point protocol


chdlc


dall of the mentioned


View Answer all of the mentioned

CRC stands for __________


acyclic redundancy check


bcode repeat check


ccode redundancy check


dcyclic repeat check



When 2 or more bits in a data unit has been changed during the transmission, the error is called ____________


arandom error


b burst error


cinverted error


ddouble error


View Answer burst error

Automatic repeat request error management mechanism is provided by ________


alogical link control sublayer


bmedia access control sublayer


c network interface control sublayer


dapplication access control sublayer



Header of a frame generally contains ______________


a synchronization bytes


baddresses


c frame identifier


dall of the mentioned


View Answer all of the mentioned

Which sublayer of the data link layer performs data link functions that depend upon the type of medium?


alogical link control sublayer


bmedia access control sublayer


cnetwork interface control sublayer


derror control sublayer



Which of the following tasks is not done by data link layer?


a framing


berror control


cflow control


d channel coding


View Answer channel coding

The data link layer takes the packets from _________ and encapsulates them into frames for transmission.


anetwork layer


b physical layer


ctransport layer


dapplication layer


View Answer network layer

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