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Question 41 (1 point) A good example of fiber lines are multiplexed and demultiplexed. is the SONET network, in which multiple optical Frequency Division Multiplexing Time Division Multiplexing Wave Division Multiplexing Analog division multiplexing Save Question 42 (1 point) The role of the address field in a network defines end to end addressing. virtual circuit datagram circuit switching all of the above Save Question 43 (1 point) Analog to analog conversion (modulation) is the representation of analog information by an analog signal. We need modulation if the medium is is the only type of channel available. S in nature or if it bandpass tripass passlow mediumband Save

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41)wave division multiplexing(WDM)

42)all the above

The role of address field in circuit switched as well as packet switched networks is end to end addressing.

43)bandpass

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