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Networking short test 1
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In OSI network architecture, the dialogue control and token management are responsibility of

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Which of the following statement is incorrect?

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Which of the following is an advantage to using fiber optics data transmission?

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Which of the following is required to communicate between two computers?

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The transmission signal coding method of TI carrier is called

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Which data communication method is used to transmit the data over a serial communication link?

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What is the minimum number of wires needed to send data over a serial communication link layer?

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Most data communications involving telegraph lines use:

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A communications device that combines transmissions from several I/O devices into one line is a

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How much power (roughly) a light emitting diode can couple into an optical fiber?

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The synchronous modems are more costly than the asynchronous modems because

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Which of the following statement is correct?

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In a synchronous modem, the digital-to-analog converter transmits signal to the

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Which of the following communications lines is best suited to interactive processing applications?

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Which of the following signal is not standard RS-232-C signal?

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Which of the following does not allow multiple uses or devices to share one communication line?

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In OSI network architecture, the routing is performed by

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Which of the following performs modulation and demodulation?

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The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:

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How many OSI layers are covered in the X.25 standard?

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Layer one of the OSI model is

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The x.25 standard specifies a

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Which of the following communication modes support two-way traffic but in only one direction at a time?

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Which of the following might be used by a company to satisfy its growing communications needs?

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What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard?

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The interactive transmission of data within a time sharing system may be best suited to

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Which of the following statement is incorrect?

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Which of the following is considered a broad band communication channel?

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Which of the following is not a transmission medium?

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A remote batch-processing operation in which data is solely input to a central computer would require

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