ISM 4220 EXAM 1 PREP QUESTIONS AND ANSWERS
What is an interconnection of computers and computing equipment using either wires or
radio waves over small or large geographic areas? - Answers - Computer network
What is the transmission of multiple signals on one medium? - Answers - Multiplexing
In what type of system does a user at a microcomputer, or client machine, issue a
request for some form of data or service? - Answers - Client/server
What layer of the OSI model performs end-to-end connection control? - Answers -
Transport
What is the addition of control information to a packet as it moves through layers of the
OSI model? - Answers - Encapsulation
What are entities that convey meaning within a computer or computer system? -
Answers - Data
What does data have to be converted into to transfer data from one point to another,
either via a physical wire or through radio waves? - Answers - A signal
What waveform does noise itself, unfortunately, occur as, making it challenging, if not
extremely difficult, to separate noise from an analog waveform that represents data? -
Answers - Analog
What is the bandwidth of a telephone system that transmits a single voice in the range
of 300 Hz to 3400 Hz? - Answers - 3100 Hz
What is the process of sending data over a signal by varying either its amplitude,
frequency, or phase? - Answers - Modulation
After a long transmission utilizing a bipolar scheme, what should the total voltage when
all the voltages are added together? - Answers - 0
What is the simplest modulation technique? - Answers - Amplitude shift keying
What incorporates four different phase angles, each of which represents 2 bits? -
Answers - Quadrature phase shift keying
What is one encoding technique that converts analog data to a digital signal? - Answers
- Pulse code modulation (PCM)
What is an interconnection of computers and computing equipment using either wires or
radio waves over small or large geographic areas? - Answers - Computer network
What is the transmission of multiple signals on one medium? - Answers - Multiplexing
In what type of system does a user at a microcomputer, or client machine, issue a
request for some form of data or service? - Answers - Client/server
What layer of the OSI model performs end-to-end connection control? - Answers -
Transport
What is the addition of control information to a packet as it moves through layers of the
OSI model? - Answers - Encapsulation
What are entities that convey meaning within a computer or computer system? -
Answers - Data
What does data have to be converted into to transfer data from one point to another,
either via a physical wire or through radio waves? - Answers - A signal
What waveform does noise itself, unfortunately, occur as, making it challenging, if not
extremely difficult, to separate noise from an analog waveform that represents data? -
Answers - Analog
What is the bandwidth of a telephone system that transmits a single voice in the range
of 300 Hz to 3400 Hz? - Answers - 3100 Hz
What is the process of sending data over a signal by varying either its amplitude,
frequency, or phase? - Answers - Modulation
After a long transmission utilizing a bipolar scheme, what should the total voltage when
all the voltages are added together? - Answers - 0
What is the simplest modulation technique? - Answers - Amplitude shift keying
What incorporates four different phase angles, each of which represents 2 bits? -
Answers - Quadrature phase shift keying
What is one encoding technique that converts analog data to a digital signal? - Answers
- Pulse code modulation (PCM)
