Английский для пользователей компьютеров. Ч.2. Белобородова М.Л - 36 стр.

      b. multiplexer
      c. controller
      d. concentrator
      e. all of the above
4.   Which of the following is considered a broadband communications
     channel?
       a. coaxial cable
       b. fiber optic cable
       c. microwave circuits
       d. satellite systems
       e. all of the above
5.   Which of the following is not a transmission medium?
      a. telephone lines
      b. coaxial cable
      c. modem
      d. microwave systems
      e. satellite systems
6.   Which of the following does not allow multiple users or devices to share
     one communications line?
     a. Doubleplexer.
     b. multiplexer
     c. concentrator
     d. controller
     e. none of the above
7.   Which of the following is an advantage to using fiber optics data
     transmission?
      a. resistance to data theft
      b. fast data transmission rate
      c. low noise level
      d. few transmission errors
      e. all of the above
8.   Which of the following is required to communicate between two
     computers?
      a. communications software
      b. protocol
      c. communications hardware
      d. access to transmission medium
      e. e. all of the above

4. Write a Russian translation for the part of the text in bold type.