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MCQs

Total Questions : 885 | Page 10 of 89 pages
Question 91. Which Is the layer of a computer system between the hardware and the user program
  1.    Operating environment
  2.    System environment
  3.    Operating system
  4.    All the above
  5.    none of the above
 Discuss Question
Answer: Option C. -> Operating system
Question 92. Office LANs that are spread geographically apart on a large scale can be connected using a corporate ——
  1.    CAN
  2.    WAN
  3.    DAN
  4.    LAN
  5.    TAN
 Discuss Question
Answer: Option B. -> WAN
Question 93. The ability to easily add additional users means that a net work is
  1.    secure
  2.    dedicated
  3.    decentralized
  4.    scalable
  5.    None of these
 Discuss Question
Answer: Option D. -> scalable
Question 94. The transmission signal coding method of Tl carrier is called
  1.    NRZ
  2.    Bipolar
  3.    Manchester
  4.    Binary
 Discuss Question
Answer: Option B. -> Bipolar
Question 95. Frames from one LAN can be transmitted to another LAN via the device
  1.    Router
  2.    Bridge
  3.    Repeater
  4.    Modem
  5.    None of these
 Discuss Question
Answer: Option B. -> Bridge
Question 96. Which of the following statement is incorrect?
  1.    Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of. data on one communication tine
  2.    RTS/CTS is the way the terminal indicates ringing
  3.    RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data
  4.    HDLC is a standard synchronous communication protocol.
 Discuss Question
Answer: Option B. -> RTS/CTS is the way the terminal indicates ringing
Question 97. To connect networks of similar protocols ______ are used
  1.    Routers
  2.    Bridges
  3.    Gateways
  4.    Dial-up routers
  5.    None of these
 Discuss Question
Answer: Option B. -> Bridges
Question 98. What is the main difference between DDCMP and SDLC? .
  1.    DDCMP has a message header
  2.    DDCMP does not need special hardware to final the beginning of a message
  3.    SDLC has a IP address
  4.    SDLC does not use CRC
  5.    none of the above
 Discuss Question
Answer: Option B. -> DDCMP does not need special hardware to final the beginning of a message
Question 99. The common name for a modulator-demodulator is __________.
  1.    modem
  2.    joiner
  3.    networker
  4.    connector
  5.    demod
 Discuss Question
Answer: Option A. -> modem
Question 100. A collection of computers and devices connected together via communication devices and transmission media is called a __________.
  1.    workgroup
  2.    server
  3.    mainframe
  4.    network
  5.    computer lab
 Discuss Question
Answer: Option D. -> network

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