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  • Question
  • Videotex is a combination of


  • Options
  • A. television
  • B. communication
  • C. computer technology
  • D. All of the above
  • E. None of the above

  • Correct Answer
  • All of the above 


  • Networking problems


    Search Results


    • 1. Which of the following frequency ranges is used for AM radio transmission?

    • Options
    • A. Very Low Frequency : 3 kHz to 30 kHz
    • B. Medium Frequency : 300 kHz to 3 MHz
    • C. High Frequency : 3 MHz to 30 MHz
    • D. Very High Frequency : 30 MHz to 300 MHz
    • E. None of the above
    • Discuss
    • 2. Which of the following services dynamically resolves NetBIOS-to-IP resolution?

    • Options
    • A. DNS
    • B. DHCP
    • C. WINS
    • D. LMHOSTS
    • E. None of the above
    • Discuss
    • 3. Phase shift keying (psk) method is used to modulate digital signals at 9600 bps using 16 levels. Find the line signaling speed (i.e., modulation rate)

    • Options
    • A. 2400 bands
    • B. 1200 bands
    • C. 4800 bands
    • D. 9600 bands.
    • Discuss
    • 4. Bus is

    • Options
    • A. one or more conductors that some 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 stations 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
    • Discuss
    • 5. In cyclic redundancy checking, the divisor is _____ the CRC.

    • Options
    • A. the same size as
    • B. one bit less than
    • C. one bit more than
    • D. two bits more
    • Discuss
    • 6. The basic Ethernet design does not provide

    • Options
    • A. access control
    • B. addressing
    • C. automatic retransmission of a message
    • D. multiple virtual networks
    • E. None of the above
    • Discuss
    • 7. The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:

    • Options
    • A. modulation
    • B. demodulation
    • C. synchronizing
    • D. synchronizing
    • E. None of the above
    • Discuss
    • 8. You are in the process of analyzing a problem that requires you to collect and store TCP/IP Packets. Which of the following utilities is best suited for this purpose?

    • Options
    • A. NBTSTAT
    • B. Performance Monitor
    • C. NETSTAT
    • D. Network Monitor
    • E. DHCP Management Console
    • Discuss
    • 9. When you connect to an online information service, you are asked to provide some kind of identification such as your name, an account number and a password. What is the name given to this brief dialogue between you and the information system?

    • Options
    • A. Security procedure
    • B. Safeguard procedure
    • C. Identification procedure
    • D. Log-on procedure
    • E. None of the above
    • Discuss
    • 10. Baseband is

    • Options
    • A. transmission of signals without modulation
    • B. a signal all of whose energy is contained within a finite frequency range
    • C. the simultaneous transmission of data to a number of stations
    • D. All of the above
    • E. None of the above
    • Discuss


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