Q. In a PC to telephone hookup for long distance communication, modem is connected between the telephone line and

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Q. Which of the following is considered a broadband communications channel?

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Q. A decrease in magnitude of current, voltage, a power of a signal in transmission between points, is known as

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Q. Data communications monitors available on the software market include

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Q. Which of the following statement is correct?

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Q. The data communication support should include, but is not restricted to

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Q. Which of the following statement is correct?

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Q. In a synchronous modem, the receive equalizer is known as

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Q. After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?

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Q. Which of the following data transmission media has the largest terrestrial range without the use of repeaters or other devices?

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Q. The area of coverage of a satellite radio beam is known as

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Q. In geosynchronous orbit, satellite

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Q. What frequency range is used for microwave communications, satellite and radar?

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Q. A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. If Delta modulation is selected, then how many bits per second are actually sent?

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Q. A 6-MHz channel is used by a digital signaling system utilizing 4-level signals. What is the maximum possible transmission rate?

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Q. Number of bits per symbol used in Baudot code is

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Q. An example of digital, rather than analog, communication is

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Q. A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent?

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Q. Baseband is

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Q. Which of the following frequency ranges is used for AM radio transmission?

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