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  • Question
  • An error detecting code is which code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as


  • Options
  • A. Cyclic redundancy check
  • B. Checksum
  • C. Error detecting code
  • D. Error rate
  • E. None of the above

  • Correct Answer
  • Cyclic redundancy check 


  • Networking problems


    Search Results


    • 1. In OSI network architecture, the routing is performed by

    • Options
    • A. network layer
    • B. data link layer
    • C. transport layer
    • D. session layer
    • E. None of the above
    • Discuss
    • 2. Which of the following communications lines is best suited to interactive processing applications?

    • Options
    • A. narrowband channels
    • B. simplex lines
    • C. full-duplex lines
    • D. mixed band channels
    • E. None of the above
    • Discuss
    • 3. On a class B network, how many subnets are available with a subnet mask of 248?

    • Options
    • A. 2
    • B. 6
    • C. 30
    • D. 62
    • E. 126
    • Discuss
    • 4. What is the first octet range for a class A IP address?

    • Options
    • A. 1 - 126
    • B. 192 - 255
    • C. 192 - 223
    • D. 1 - 127
    • E. 128 - 191
    • Discuss
    • 5. The main difference between TCP and UDP is

    • Options
    • A. UDP is connection oriented where as TCP is datagram service
    • B. TCP is an Internet protocol where as UDP is an ATM protocol
    • C. UDP is a datagram where as TCP is a connection oriented service
    • D. All of the above
    • Discuss
    • 6. What is the name of the device that connects two computers by means of a telephone line?

    • Options
    • A. Tape
    • B. modem
    • C. bus
    • D. cable
    • E. None of the above
    • Discuss
    • 7. The area of coverage of a satellite radio beam is known as

    • Options
    • A. Footprint
    • B. Circular polarization
    • C. Beam width
    • D. Identity
    • E. None of the above
    • Discuss
    • 8. Typewriter terminals can print computer-generated data at a rate of

    • Options
    • A. 10 characters per second
    • B. 120 characters per second
    • C. 120 characters per minute
    • D. 1200 characters per minute
    • E. None of the above
    • Discuss
    • 9. After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?

    • Options
    • A. Telex
    • B. Word processor
    • C. Facsimile
    • D. Electronic mail
    • E. None of the above
    • Discuss
    • 10. RS-232-G

    • Options
    • A. is an interface between two data circuit terminating equipment as examplified by a local and remote modem
    • B. is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment
    • C. specifies only the mechanical characteristics of an interface by providing a 25-pin connector
    • D. requires only 7 pin out of 25 in order to transmit digital data over public telephone lines
    • E. None of the above
    • Discuss


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