3D152 Volume 2

93 Questions | Total Attempts: 733

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3D152 Quizzes & Trivia

Questions and Answers
  • 1. 
    What happenes when more bits are added to a digital signal arranged in a sequence understood by the sender and reciever?
    • A. 

      A code set is established

    • B. 

      A word is created

    • C. 

      An octet is formed

    • D. 

      Nothing

  • 2. 
    How many possible symbols can 4 bits represent?
    • A. 

      2

    • B. 

      4

    • C. 

      8

    • D. 

      16

  • 3. 
    In networking, a byte is identified as a/an
    • A. 

      Bit

    • B. 

      Word

    • C. 

      Octet

    • D. 

      Letter

  • 4. 
    What organization sets important computer networking wiring standards for residential and commercial network cabling?
    • A. 

      Electric Industries Alliance (EIA)

    • B. 

      Telecommunications Industry Association (TIA)

    • C. 

      The American National Standards Institute (ANSI)

    • D. 

      The National Institute of Standards and Technology (NIST)

  • 5. 
    What Electric Industries Alliance (EIA)/ Telecommunications Industry Association (TIA) standard is used for commercially building telecommunications cabling?
    • A. 

      568A

    • B. 

      569A

    • C. 

      570A

    • D. 

      606A

  • 6. 
    Which of the following is an International  Telecommunications  Union (ITU) standardized format used for digital telecommunications services backbone system?
    • A. 

      E-carrier

    • B. 

      Structured query language

    • C. 

      International Organization for Standardization

    • D. 

      American Standard Code for Information Interchange

  • 7. 
    What is a worldwide nonprofit association of technical professionals that promotes the development of standards called the
    • A. 

      Internet Engineering Task Force (IETF)

    • B. 

      Institute of Electrical and Electronics Engineers (IEEE)

    • C. 

      European Telecommunications Standards Institute (ETSI)

    • D. 

      Internet Corporation for Assigned Names and Numbers

  • 8. 
    A collection of standards for local area network (LAN) architectures, protocols, and technologies called Project 802 were developed by the
    • A. 

      Internet Engineering Task Force (IETF)

    • B. 

      Institute of Electrical and Electronics Engineers (IEEE)

    • C. 

      European Telecommunications Standards Institute (ETSI)

    • D. 

      Internet Corporation for Assigned Names and Numbers

  • 9. 
    The "parent" organization, headquartered in Geneva, Switzerland, for all other telecommunications organizations is the 
    • A. 

      Internet Engineering Task Force (IETF)

    • B. 

      International Telecommunication Union (ITU)

    • C. 

      Institute of Electrical and Electronics Engineers (IEEE)

    • D. 

      International Telegraph and Telephone Consultative Committee (CCITT)

  • 10. 
    What organization is responsible for the X-series and V-series standards?
    • A. 

      Internet Engineering Task Force (IETF)

    • B. 

      International Telecommunication Union (ITU)

    • C. 

      Institute of Electrical and Electronics Engineers (IEEE)

    • D. 

      International Telecommunication Union Telecommunications Standardization Sector (ITU-T)

  • 11. 
    Which series of standards are recommended for data transmission using the telephone network?
    • A. 

      T

    • B. 

      V

    • C. 

      X

    • D. 

      Z

  • 12. 
    The definition of the Open System Interconnect (OSI) reference model was a major contribution to networking made by the 
    • A. 

      Internet Engineering Task Force (IETF)

    • B. 

      International Telecommunication Union (ITU)

    • C. 

      International Organization for Standardization (ISO)

    • D. 

      Institute of Electrical and Electronics Engineers (IEEE)

  • 13. 
    Within how man feet of the data communications equipment (DCE) connection does the Electronics Industries  Alliance (EIA) RS-232-C standard prescribes bipolar-voltage serial data transmission?
    • A. 

      25

    • B. 

      50

    • C. 

      100

    • D. 

      200

  • 14. 
    Which Electronics Industries Alliance (EIA) interface standard has the ability to work in either balanced or unbalanced electrical circuits?
    • A. 

      RS-232-C

    • B. 

      RS-423

    • C. 

      RS-485

    • D. 

      RS-530

  • 15. 
    What transmission rates does Electronic Industries Alliance (EIA) RS-530 accommodate?
    • A. 

      20 kilobits per second (Kbps) to 200 Kbps

    • B. 

      20 Kbps to 2 megabits per second (Mbps)

    • C. 

      20 Kbps to 20 Mbps

    • D. 

      20 Kbps to 22 Mbps

  • 16. 
    What sublayers did the Institute of Electrical and Electronics Engineers (IEEE) divide the Open System Interconnect (OSI) data link layers into?
    • A. 

      High Level Data Link Control (HDLC) and Synchronous Data Link Control (SDLC)

    • B. 

      Logical Link Control (LLC) and Media Access Control (MAC)

    • C. 

      Data Communications Equipment (DCE) and Data Terminal Equipment (DTE)

    • D. 

      Electronics Industries Alliance (EIA) RS-232 and RS-530

  • 17. 
    At what OSI layer are common data compression and encryption schemes used?
    • A. 

      Application

    • B. 

      Session

    • C. 

      Presentation

    • D. 

      Transport

  • 18. 
    What OSI layer is closest to the end user?
    • A. 

      Application

    • B. 

      Session

    • C. 

      Presentation

    • D. 

      Transport

  • 19. 
    In the OSI model, a layer will communicate with three other OSI layers. Which one is not of those layers?
    • A. 

      Layer above

    • B. 

      Layer below

    • C. 

      Lowest layer

    • D. 

      Peer layer

  • 20. 
    Which information unit, whose secure and destination are network-layer entities, uses connectionless network service?
    • A. 

      Frame

    • B. 

      Packet

    • C. 

      Segment

    • D. 

      Datagram

  • 21. 
    What data communication protocol is used to govern the flow and format of information between systems?
    • A. 

      Character-oriented

    • B. 

      Bit-oriented

    • C. 

      Routing

    • D. 

      Network

  • 22. 
    In binary-synchronous protocol, what character is used to establish and maintain character synchronization prior to the message block and during transmission?
    • A. 

      SEQ

    • B. 

      SYN

    • C. 

      STX

    • D. 

      EST

  • 23. 
    What data communication protocol is based on bits and the position of the bits
    • A. 

      Character-orientd

    • B. 

      Bit-oriented

    • C. 

      Routing

    • D. 

      Network

  • 24. 
    What data communication protocol ensures that the receiving station can distinguish information from garbage?
    • A. 

      Asynchronous protocol

    • B. 

      Binary synchronous protocol

    • C. 

      Synchronous Data Link Control (SDLC)

    • D. 

      High Level Data Link Control (HDLC)

  • 25. 
    A group of computers and associated devices that hare a common communications line within a small geographic area is a 
    • A. 

      MAN

    • B. 

      LAN

    • C. 

      WAN

    • D. 

      VPN