Information Technology - National Institute of Oriented School (ITNIOS)
Set 4
Question:1A remote batch-processing operation
in which data is solely input to a central computer would require
a. telegraphp lineb. simplex linesc. mixed bad
channeld. all of above
Question 2:A band is
always equivalent to
a. a byteb. a bitc. 100 bitsd. none of above
Question 3:The loss in signal power as
light travels down the fiber is called
a. attenuationb. progragationc. scatteringd.
interruption
Question 4:Avalanche photodiode
receivers can detect bits of transmitted data by receiving
a. 100 photonsb. 200 photonsc. 2000 photonsd.
300 photons
Question 5:Communiction circuits that
transmit data in both directions but not at the same time are operating in
a. a simplex modeb. a half duplex modec. a
full duplex moded. an asynchronous mode
Question 6:An example of a medium speed,
switched communications service is
a. series 1000b. data phone 50c. DDDd. All of the above
Question 7:In communication satellite,
multiple repeaters are known as
a. detectorb. modulatorc. stationsd.
transponders
Question 8:While transmitting odd-parity coded
symbols, the number of zeros in each symbol is
a. oddb. evenc. a and b bothd. unknown
Question 9:Data communications monitors
available on the software marked include
a. ENVIRON/1b. TOTALc. BPLd. Telnet
Question 10:An example of an analog
communication method is
a. laser beamb. microwavec. voice grade
telephone lined. all of the above
1. b 2.
D 3. A 4. B 5. B 6. C 7.
D 8. D 9. A 10. d
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