Exam 4: Manipulating Information for Transmission

Early scientists determined that ________ eight-bit words sufficiently represent all of the levels of human speech.

________ is the final step in the analog-to-digital conversion process.

The pulse ________ is the shape the pulse should fall within in order to be considered a pulse.

In analog data transmission, frequencies of 0 to 300 Hz and 3300 to 4000 Hz are reserved as ________, used to ensure that the data transmission will not interfere with other signals.

Which statement concerning fast-packet multiplexing is not true?

________ combines PM and AM to produce a four-bit per baud signal

The simplest technique for converting the digital signal to an analog signal is:

Explain the analog-to-digital conversion process, describing the three steps involved.

The only analog portion of the network left today is that found between the serving central office and the subscriber's residence.

The newest multiplexing technology in the communications network is:

________ is the acronym for the multiplexing method that works by dividing the frequency spectrum into subchannels, or frequency chunks, and transporting individual voice signals across each channel.

Fast-packet multiplexing is quickly becoming the multiplexing method of choice.

The optical standard that defines specific bit-per-second rates is the ________ standard.

When information is shipped out onto the medium one bit at a time, it is said to be traveling across the network via parallel transmission.

The step that converts a voltage value of the analog waveform to a digital word in analog-to-digital conversion is called ________.

When a digital line interfaces with a PC, the signal has to go through analog-to-digital conversion.

One problem with analog signals is that they have:

The acronym for systems with very wide spacing fields between each wavelength that limit the number of channels per system is ________.

The most commonly used digital bit pattern and the one most commonly used in the communications network is the:

ATM stands for ________ transfer mode, a fast packet transmission protocol that statistically multiplexes fixed-length cells.