Computer Sciences MCQs Chapter 4 Class 11

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Created on February 22, 2023

Computer Sciences Ch 4 Class 11

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19. coding schemes uses 4 bit code:

Unicode

ASCII

EBCDIC

BCD

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17. The music and speech represent the: (a) Image data (b) Audio data (c) Video data (d) Text data

Image data

Audio data

Video data (

Text data

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8. The is the physical path over which a message travels:

Medium

All

Protocol

Single

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I I. Communication between a computer and a keyboard involves transmission:

Simplex

half-duplex

Full-duplex

automatic

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12. Light, sound, and radio waves are examples of:

Analog signal

Simple signals

Digital signals

None

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13. The number of times a wave repeats during a specific time interval is called:

Amplitude

Oscillation

Frequency

Pulses

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9. The electromagnetic or light waves representing data are called:

Refraction

Signals

(b) Information

None

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The infonnation that is to be transferred from one location to another is called:

Signals

Data

Sender

Message

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5. is component of data communication:

Sender

Receiver

Encoder and Decoder

All

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18. data type represents actions and movements:

Image data

Audio data

Video data

Text data

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2. Data communication requires only a:

Sender

Receiver

Transmission Medium

All of the above

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14. The height of wave within a given period of time is called:

Amplitude

Oscillation

Frequency

Pulses

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6. is not component of data communication:

Medium

Voltage

Decoder

Receiver

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16. The charts, graphs and pictures are examples of:

Image

Audio

Video

Text

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7. A device that receives messages is called:

Transmitter

Receiver

Source

Sender

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10. BIT stands for

Binary Integer

Binary Interval

Binary Digit

None of the above

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Microwave transmission, coaxial cables and fiber optic are examples of:

Modems

Communication Links

Gateways

Ring Network

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20. coding schemes is used by IBM:

Unicode

ASCII

EBCDIC

BCD

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15. Which type of data consists of words, sentences, and paragraphs?

Text

Image

Numeric

Video

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3. The process of transferring data from one location to another is called:

Data processing

Data communication

Data computing

Data sequencing

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