Exam 11: Network Communications

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Which OSI level is concerned with message integrity between the source and destination?

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Which OSI level accepts outgoing messages and combines messages into packets, adding a header?

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Setting the destination MAC address to all 1's is called a:

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A cable with added inductance every 6000, 4500 or 3000 feet is called a:

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The voltage difference between the tip and ring lines of the phone line when it is on-hook is

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The V.92/90 standard for high speed modems is

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A number that identifies the switch nearest to the caller is called

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The length of a MAC address is :

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A technique used by cable modems to determine the time it takes for data to travel to the cable head-end is called.

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Which of the following is considered a wide area network?

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What are the two systems that most mobile telephone service providers presently use? (select two)

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Repeaters are used in T1 lines to carry voice channels when the lines stretch more than

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A PBX is a:

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Which OSI level is associated with handling error recovery, flow control, and sequencing?

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What is the most common reason for sending a release code?

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128.123.1.10 is an example of a:

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The protocol that has been developed to bridge the gap between mobile communications, the internet, and corporate intranets is the :

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The FM capture effect in cellular telephone systems is hindered from minimizing co-channel interface effects due to:

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The ringing signal voltage of the telephone service is set at:

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When making a total harmonic distortion measurement of a 1kHz sinewave, the fundamental frequency of the test instrument must be set to:

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