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MCQs

Total Questions : 885 | Page 2 of 89 pages
Question 11. ________ is a technique that is used to send more than one call over a single line.
  1.    Digital transmission
  2.    Infrared transmission
  3.    Digitizing
  4.    Streaming
  5.    Multiplexing
 Discuss Question
Answer: Option E. -> Multiplexing
Question 12. How many OSI layers are covered in the X.25 standard?
  1.    Two
  2.    Seven
  3.    Three
  4.    Six
  5.    None of above
 Discuss Question
Answer: Option C. -> Three
Question 13. Which is the first program run on a computer when the computer boots up?
  1.    Operating system
  2.    System software
  3.    System operations
  4.    All the above .
  5.    none of the above
 Discuss Question
Answer: Option A. -> Operating system
Question 14. Which of the following is not a disadvantage of wireless LAN?
  1.    Slower data transmission
  2.    higher error rate
  3.    interference of transmissions from different computers
  4.    All of the above
  5.    None of these
 Discuss Question
Answer: Option D. -> All of the above
Question 15. The method of Internet access that requires a phone line, but offers faster access speeds than dial-up is the _____ connection.
  1.    cable access
  2.    satellite access
  3.    fiber-optic service
  4.    Digital Subscriber Line (DSL)
  5.    modem
 Discuss Question
Answer: Option E. -> modem
Question 16. Avalanche photodiode receivers can detect bits of transmitted data by receiving
  1.    200 photons
  2.    100 photons
  3.    2000 photons
  4.    300 photons'
  5.    none of the above
 Discuss Question
Answer: Option A. -> 200 photons
Question 17. A popular way to learn about computers without ever going to a classroom is called __________.
  1.    i-learning
  2.    isolated learning
  3.    e-learning
  4.    close learning
  5.    distance learning
 Discuss Question
Answer: Option C. -> e-learning
Question 18. Which of the following types of channels moves data relatively slowly?
  1.    narrow band channel
  2.    voice band channel
  3.    wide band channel
  4.    side band channel
 Discuss Question
Answer: Option A. -> narrow band channel
Question 19. Bluetooth is an example of __________.
  1.    Personal area network
  2.    Local area network
  3.    Virtual private network
  4.    Wide area network
  5.    None of these
 Discuss Question
Answer: Option A. -> Personal area network
Question 20. A device which can be connected to a network without using cable is called
  1.    Distributed device
  2.    Centralised device
  3.    Open-source device
  4.    Wireless device
  5.    Without code device
 Discuss Question
Answer: Option D. -> Wireless device

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