Exam 5: Making Connections Efficient: Multiplexing and Compression

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In ____________________, the sharing of the medium is accomplished by dividing available transmission time among users.

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____ division multiplexing is a good choice for connecting a number of lower-speed devices that do not transmit data on a continuous basis to a remote computer system.

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How does Wavelength division multiplexing work?

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What are the major disadvantages of frequency division multiplexing?

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______ is a technique that is very commonly used to compress video images.

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SONET and SDH are able to multiplex varying speed streams of data onto one fiber connection.

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Each STS level supports a particular data rate and is supported by a physical specification called a(n) ____________________.

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SONET defines a hierarchy of signaling levels, or data transmission rates, called ____.

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With a(n) ____________________ compression technique, no data is lost due to compression.

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DSL is capable of achieving speeds into the millions of bits per second.

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Audio engineers compress music through techniques called perceptual noise shaping, or ____________________.

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A video device displays multiple (typically 30) frames per second.

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Chip spreading codes are ____ bits in length.

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____________________, transmits data only from active users and does not transmit empty time slots.

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SONET and SDH are both ____ multiplexing techniques.

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Code division multiplexing, while using a fairly wide bandwidth of frequencies and a complex technology, is scalable like WDM.

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A T-1 system continuously sends a signal, even if there is no real data to transmit.

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When WDM can support a large number of lambdas, it is often called ____________________.

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Both frequency division multiplexing and synchronous time division multiplexing can waste unused transmission space.

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Time division multiplexing (TDM) allows only one user at a time to transmit.

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