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  • Question
  • Carrier is


  • Options
  • A. One or more conductors that serve as a common connection for a related group of devices
  • B. a continuous frequency capable of being modulated or impressed with a second signal
  • C. the condition when two or more sections attempt to use the same channel at the same time
  • D. a collection of interconnected functional units that provides a data communications service among stations attached to the network
  • E. None of the above

  • Correct Answer
  • a continuous frequency capable of being modulated or impressed with a second signal 


  • More questions

    • 1. Routers are often used to implement FIREWALLS

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. What is the i/o address for com2?

    • Options
    • A. 2vb
    • B. 2f8
    • C. 8f8
    • D. 330
    • Discuss
    • 3. "Parity" errors usually indicate bad memory.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. On the 16-bit ISA bus, IRQ2 is elevated to which higher level interrupt?

    • Options
    • A. 9
    • B. 11
    • C. 13
    • D. 15
    • E. None of the above
    • Discuss
    • 5. How many DMA channels are there in an AT class PC?

    • Options
    • A. 3
    • B. 4
    • C. 7
    • D. 8
    • E. None of the above
    • Discuss
    • 6. _____ has become the most widely used bipolar family.

    • Options
    • A. DTL
    • B. TTL
    • C. ECL
    • D. MOS
    • E. None of the above
    • Discuss
    • 7. How many bytes are there in 1011 1001 0110 1110 numbers?

    • Options
    • A. 1
    • B. 2
    • C. 4
    • D. 8
    • E. None of the above
    • Discuss
    • 8. What switch would you use to view Smartdrive statistics?

    • Options
    • A. /x
    • B. /e:
    • C. /s
    • D. /o:n
    • E. None of the above
    • Discuss
    • 9. Which of the following command lists the last 10 lines of a file?

    • Options
    • A. grep
    • B. tail
    • C. head
    • D. cat
    • E. None of the above
    • Discuss
    • 10. Which of the following command can be used to rename a file in UNIX?

    • Options
    • A. ren
    • B. mv
    • C. remove
    • D. change
    • E. None of the above
    • Discuss


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