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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