Data Communication and Computer Networks - Network Models

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6. Which of the following ISO level is more closely related to the physical communications facilities?

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Option : D
Explanation :

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7. Which model shows how the network functions of a computer ought to be organized ?

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Option : B
Explanation : Open system interconnection model shows the network function of a computer developed by international standards organization.

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

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Option : B
Explanation :

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9. Which of the following is a wrong example of network layer ?

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Option : D
Explanation :

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10. IEEE Project 802 divides the data link layer into which upper sublayer and which lower sublayer ?

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Option : A
Explanation : IEEE project 802 divides the data link layer into two sub layer logical link control (LLC) and Medium access control (MAC).

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Network Models Questions for UGC NET Computer Science

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