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CSE :: Networking

  1. A batch processing terminal would not include a

  2. A.
    CPU
    B.
    card reader
    C.
    card punch
    D.
    line printer
    E.
    None of the above

  3. Packet Switch Stream (PSS) was introduced in

  4. A.
    the US in 1961 (&) the UK in 1981
    B.
    the UK in 1980
    C.
    the US in 1961
    D.
    None of the above

  5. The physical layer of a network

  6. A.
    defines the electrical characteristics of signals passed between the computer and communication devices
    B.
    controls error detection and correction
    C.
    constructs packets of data and sends them across the network
    D.
    All of the above
    E.
    None of the above

  7. Which of the following allows devices on one network to communicate with devices on another network?

  8. A.
    multiplexer
    B.
    gateway
    C.
    t-switch
    D.
    modern
    E.
    None of the above

  9. 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

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

  11. Bulletin board system

  12. A.
    is a public access message system
    B.
    is a modem capable of accepting commands
    C.
    converts analog signals to digital signals
    D.
    converts digital signals to analog signals
    E.
    None of the above

  13. In OSI model, which of the following layer provides error-free delivery of data?

  14. A.
    Data link
    B.
    Network
    C.
    transport
    D.
    Session
    E.
    None of the above

  15. Error detection at the data link level is achieved by?

  16. A.
    Bit stuffing
    B.
    Hamming codes
    C.
    Cyclic Redundancy codes
    D.
    Equalization
    E.
    None of the above

  17. The area of coverage of a satellite radio beam is known as

  18. A.
    Footprint
    B.
    Circular polarization
    C.
    Beam width
    D.
    Identity
    E.
    None of the above

  19. Which of the following data transmission media has the largest terrestrial range without the use of repeaters or other devices?

  20. A.
    Hardwiring
    B.
    Microwave
    C.
    Satellite
    D.
    Laser
    E.
    None of the above