Data Link Layer MCQs

10 MCQs — Computer Networks MCQs

Practice Data Link Layer MCQs with correct answers and explanations. These questions are from the Computer Networks MCQs section.

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

A. Network layer
B. Physical layer
C. Transport layer
D. Application layer

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

A. Framing
B. Error control
C. Flow control
D. Channel coding

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

A. Logical link control sublayer
B. Media access control sublayer
C. Deals with transmission of data packets to and from the network-interface card, and also to and from another remotely shared channel. the mac sublayer also prevents collision using protocols like csma/cd.
D. Error control sublayer

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Header of a frame generally contains ______________

A. Synchronization bytes
B. Addresses
C. Frame identifier
D. All of the mentioned

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Automatic repeat request error management mechanism is provided by ________

A. Logical link control sublayer
B. Media access control sublayer
C. Network interface control sublayer
D. Application access control sublayer

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

A. Random error
B. Burst error
C. Inverted error
D. Double error

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CRC stands for __________

A. Cyclic redundancy check
B. Code repeat check
C. Code redundancy check
D. Cyclic repeat check

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Which of the following is a data link protocol?

A. Ethernet
B. Point to point protocol
C. Hdlc
D. All of the mentioned

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

A. Csma/cd
B. Csma/ca
C. Both csma/cd & csma/ca
D. Hdlc

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

A. Piggybacking
B. Cyclic redundancy check
C. Fletcher’s checksum
D. Parity check

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