Exam 8: Data and Network Communication Technology

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​Type I error rates can be reduced by combining parity checking and block checking.

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​List two characteristics in which error detection and correction methods vary.

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​A wave with encoded bits is called a(n) ____________________ wave because it transports bits from one place to another.

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​A complete ____ of a sine wave follows its full range from zero to positive peak, back to zero, to its negative peak, and then back to zero again.

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S/N ratio is computed as the log of signal power minus noise power.​

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​____ routes signals between two locations through a physical connection, such as copper wire or optical fiber.

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Under ____________________ parity, the sender sets the parity bit to 0 if the count of 1-valued data bits is even or to 1 if the count of 1-valued data bits is odd.

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Data messages vary in format and content and can include any primitive CPU data types or more complex data types.​

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​Circuit switching makes efficient use of channel capacity in most data transmission situations.

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​As bit transmission speed is increased, the duration of each bit in the signal, known as the ____, decreases.

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In ____________________ transmission, messages are sent on an as-needed basis.

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The term ____ describes the maximum number of bits or bytes per second that the channel actually achieves with a specific communication protocol. ​

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Square waves can be generated by rapidly switching (pulsing) an electrical or optical power source-a technique called ____.

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​A(n) ____________________ signal can contain one of a finite number of possible values.

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​Despite its complexities, packet switching is the dominant form of intercomputer communication.

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In ____ mode, the receiver can communicate with the sender at any time over the second transmission line, even while data is still being transmitted on the first line.

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Most local phone service is based on a channel-sharing strategy called ____.

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​What are the two main synchronization problems that can occur during message transmission?

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Parity checking can be expanded to groups of characters or bytes by using ____.

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​____ transmission uses a separate transmission line for each bit position.

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