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Computer Network

81.

From the truth table for a three-input NOR gate, what is the only condition of inputs AB, and C that will make the output X high?

Answer: D

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82.

Which among the following is not a transmission medium?

Answer: C

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83.

The Boolean expression for a 3-input AND gate is ________.

Answer: B

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Answer: C

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85.

Which of the given below  houses the switches in Token Ring ?

Answer: B

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Answer: C

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87.

Television channels are 6 MHz. How many bits can be sent if four level digital signals are used (assume a noiseless channel)?

Answer: A

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88.

Which of the following decides the role (sender or receiver) of a device on a network ?

Answer: C

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89.

A field in the Ethernet message packet is

Answer: D

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90.

The number of cross-points needed for 10 lines in a cross-point switch which is full duplex in nature and there are no self connection, is

Answer: B

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