1st Year Computer Chapter 3 MCQs Test1st Year 0% Online MCQs Test Chapter 3 Most Important and Board Exam Repeated MCQs 1 / 34 1. Process of sending data from on device to other is called: a) Data processing b) Data Sorting c) Data communication d) Data Encryption 2 / 34 2. Example of numeric data is: a) 344 b) 43.4 c) A and B d) None of these 3 / 34 3. The electromagnetic or light waves representing data are called a) Mode b) Signal c) information d) coding 4 / 34 4. A cable consists of tubes of glass through which data are transmitted as pulse of light is called: a) Coaxial Cable b) Twisted Pair Cable c) Fiber Optic Cable d) All of these 5 / 34 5. Example of unguided media: a) Twisted pair b) Coaxial c) Fiber optic d) Microwave 6 / 34 6. Start/Stop bits are not required in the transmission: a) Asynchronous transmission b) Synchronous transmission c) Parallel d) Serial 7 / 34 7. Communication between computer and keyboard involves the transmission: a) Automatic b) Multiplex c) Half duplex d) Simplex 8 / 34 8. The microphone converts the sound into: a) Mechanical signal b) Electrical signal c) Computer file d) signal 9 / 34 9. The process of converting digital signals into analog signals by a modem is: a) Modulation b) Demodulation c) Merging d) Minxing 10 / 34 10. The device that receive data is called: a) Transmitter b) source c) Encoder d) Sink 11 / 34 11. A type of communication that send data using flow control to synchronise data between sender and receiver: a) Asynchronous transmission b) Synchronous transmission c) Isochronous transmission d) Monochronous transmission 12 / 34 12. Digital signals are commonly called as . a) broadband b) Analog Signal c) baseband d) All of these 13 / 34 13. Modulation require in _______. a) baseband b) both c) none d) broadband 14 / 34 14. Transmission from satellite to its earth-based station is called . a) uplink b) multiplexing c) downlink d) demultiplexing 15 / 34 15. Data travel in line of sight in : a) fiber optic b) Twisted pair c) microwave d) Coaxial 16 / 34 16. The modem's data transfer rate is measured in . a) Kbps b) Gbps c) Npbs d) Mbps 17 / 34 17. BIT stand for a) Binary integer b) Binary data c) Binary Document d) Binary Digit 18 / 34 18. Data is transmitter block by block in . a) Asynchronous transmission b) Synchronous Transmission c) Both d) None 19 / 34 19. Most of data transmission over telephone lines use . a) Serial b) Parallel c) Digital d) Hybrid 20 / 34 20. Important property of fiber optic cable is . a) Attenuation b) Refraction c) NoisE d) Interference 21 / 34 21. Which of the following device uses the parallel transmission ? a) Mouse b) Keboard c) Printer d) Touchpad 22 / 34 22. Which of the following type of data is used to displaying action and movement ? a) Audio b) Text c) Numeric d) Video 23 / 34 23. Signals produced by computer to set over telephone line must be converted to: a) Analog Signal b) Digital signal c) Waves d) Bits 24 / 34 24. Analog signals are measured in . a) HertZ b) Volt c) Digit d) Watts 25 / 34 25. Frequency of analog signals measured in . a) volt b) watts c) digit d) Hertz 26 / 34 26. The height of wave within a given period of time is known as . a) Amplitude b) Frequency c) Oscillation d) Pulse 27 / 34 27. The number of times a wave repeats during a specific time interval is called . a) Pulse b) Amplitude c) Frequency d) Oscillation 28 / 34 28. Data communication requires only . a) Sender b) Receiver c) Medium d) All of these 29 / 34 29. The internal transfer of data in a computer uses: a) Parallel mode b) Serial mode c) A and B d) none 30 / 34 30. ASCII code was developed by: a) IBM b) ISO c) MICRSOFT d) ANSI 31 / 34 31. BCD code is ______ bit code. a) 2 b) 4 c) 8 d) 16 32 / 34 32. ______ code is 7 or 8 bis code a) BCD b) UNICODE c) ASCII d) EBCDIC 33 / 34 33. _____ Encoding scheme was used and developed by IBM. a) EBCDIC b) ASCII c) UNICODE d) ALL of these 34 / 34 34. Sound, light and radio waves are example of which signal? a) Digital Signal b) Analog Signal c) A and B d) None of these Your score isThe average score is 82% 0% Restart quiz Helpful? Share with friends