ISRO Scientist/Engineer Question Paper Computer Science 2013

36. Question
The voltage range for a logic high and a logic low in RS-232 C standard is




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37. Question
In the Ethernet, which field is actually added at the physical layer and is not part of the frame




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38. Question
Ethernet layer-2 switch is a network element type which gives




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39. Question
If the frame to be transmitted is 1101011011 and the CRC polynomial to be used for generating checksum is x4+x+1, then what is the transmitted frame?




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40. Question
What will be the efficiency of a Stop and Wait protocol, if the transmission time for a frame is 20ns and the propagation time is 30ns?




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