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Q.

Which of the following device is used to connect two systems, especially if the systems use different protocols?

A

hub

B

bridge

C

gateway

D

repeater

E

None of the above

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1.

The most important part of a multiple DHCP configurations is to make sure you don't have which of the following in the different scopes? Select the best answer.

A

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2.

An example of an analog communication method is

A

laser beam

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microwave

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voice grade telephone line

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The CCITT Recommendation X.25 specifies three layers of communications:

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physical datalink and network

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E

None of the above

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The X.25 standard specifies a

A

technique for start-stop data

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technique for dial access

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data bit rate

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None of the above

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A medium access control technique for multiple access transmission media is

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Aloha

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Amplitude

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Angle modulation

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None of the above

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