Information and Communication Technology
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Information and Communication Technology questions with answers

1,360 multiple-choice questions. Open any question for its answer and explanation.

Questions asked in State PSC and UPSC prelims, by topic. Each topic also has notes to read.

Read the notes: Data Communication and Transmission Modes →

  1. The form of information signal used in sending fax and email is,Asked in JPSC CS Prelims 2021
  2. The primary use of scramblers in Line Coding Schemes is to - - (5) Question not attemptedAsked in Programmer Exam 2024
  3. A technique used by codes to convert an analog signal into a digital bit stream is known asAsked in Assistant Engineer (AE) Exam 2012
  4. 'MODEM' is used for -Asked in Civil Judge 2022
  5. The demodulation of a delta-modulated signal is achieved by differentiation sampling integration band-pass filteringAsked in GS&EI ElectEngg 14 2024 1601 2025
  6. Which one of the following pairs is the third generation (3G) mobile telecommunication?Asked in APSC CCE Prelims Exam 2016
  7. Which of the following statements is/are correct regarding VoLTE technology used by mobile network? 1. It allows transmission of data through a 4G network while voice calls are routed through older 2G or 3G networks. 2. It counts voice calls as per data usage rather than minutes of usage.Asked in GPSC Prelims CSP 2 2019
  8. Which of the following statements is/are correct regarding 4G LTE telecom in India? (A) Currently in India, 4G LTE band-40 having 2300 to 2400 MHz (TD-LTE) frequency range is active (online) (B) LTE band in 1800 MHz (FDD-LTE) frequency is also auctioned by the governmentAsked in GPSC Prelims CSP 2 2022
  9. Which of the following statements are correct regarding VoLTE? 1. VOLTE stands for ‘Voice over Long Term Evolution’ 2. It is a digital packet voice service delivery over IP via an LTE access network. 3. Provides more efficient use of spectrum than traditional Voice 4. Eliminates the need to have Voice on one network and data on anotherAsked in GPSC Prelims CSP 2 2022
  10. The process of superposition of any information on radiowaves is named asAsked in JPSC CS Prelims 2024
  11. Ethernet is an example ofAsked in MPPSC CS Prelims 2017
  12. A modem convertsAsked in MPPSC CS Prelims 2017
  13. Name the facility by which voice, data and video clips are speedily transferred in the mobile phone ?Asked in MPSC CS Prelims 2012
  14. Which modulation technique is preferred for medium speed communication range upto 1200 to 2400 bits per second ?Asked in UKPSC CS Prelims 2024
  15. Which one among the following statements about 'modem' is correct?Asked in UPSC CAPF 2013
  16. The process of converting digital signals to analog signals is known asAsked in UPSC CBI DSP LDCE 2023
  17. The device by which data are transferred by telephone with the help of binary signals, isAsked in UPPSC Upper Mains 2007
  18. In Television Broadcast, the picture signals are transmitted by:Asked in RPSC RAS Prelims 2012
  19. Which of the following is a type of Internet connection that uses telephone lines?Asked in MPPSC CS Prelims 2023
  20. Which type of modulation is employed in India for radio transmission?Asked in WBCS Main Paper 4 2023
  21. In TV transmission, picture signal is _______ modulated.Asked in WBCS Main Paper 4 2019
  22. Which of the following is a class C IP address ? Here x can be any number between 0 to 255. - Question not attemptedAsked in Asst. Fisheries Development Officer 2024
  23. A block of addresses is granted to a small organization. We know that one of the addresses the block? Ans: C The first address in an IP block (network address) is found by setting all the host bits to zero. For a /28 subnet mask, 4 host bits are available, leading to a block size of 16. 25. Match the Service in Column-I with the corresponding relevant Example in Column-II - Column-I Column-II (Service) (Example) (a) Reliable byte stream (i) Voice over IP (b) Unreliable connec‐ (ii) Text messaging tion (c) Unreliable datagram (iii) Movie download (d) Acknowledged data‐ (iv) Electronic junk gram mailAsked in Analyst Cum Programmer (Deputy Director) 2024
  24. Which of the following is the primary function of a modem in a telecommunication system?Asked in Local Self Government Dept. Exam 2022
  25. The frequency modulation band broadcast betweenAsked in Deputy Superintendent of Police (Police Telecom) Exam 2024