16. 

A distributed data processing configuration in which all activities must pass through a centrally located computer is called a:

A. ring network
B. spider network
C. hierarchical network
D. data control network
E. None of the above

17. 

The size or magnitude of a voltage or current waveform is

A. Amplitude
B. Aloha
C. Angle Modulation
D. Attenuation
E. None of the above

18. 

Which of the following network access standard is used for connecting stations to a circuit-switched network?

A. X.3
B. X.21
C. X.25
D. X.75
E. None of the above

19. 

Which of the following is not a transmission medium?

A. telephone lines
B. coaxial cable
C. modem
D. microwave systems
E. satellite systems

20. 

A batch processing terminal would not include a

A. CPU
B. card reader
C. card punch
D. line printer
E. None of the above