livingmylivetothefullest

It's about life

Answer of Mr. Tri Djoko Assignment Chapter 9

True/False

  1. True
  2. False
  3. True
  4. False
  5. True
  6. True
  7. False
  8. True
  9. False
  10. True
  11. True

Multiple Choice

  1. C
  2. C
  3. C
  4. D
  5. B
  6. A
  7. D
  8. B

Matching

  1. E
  2. J
  3. H
  4. D
  5. F
  6. A
  7. G
  8. B
  9. C
  10. I

Short Answer

  1. Text messaging is a process where users sends and receives short text messages, usually around 160 characters, on a phone or other mobile device or computer.

    Mobile to Mobile: send a message from your mobile device to another mobile device. Mobile to E-Mail: send a message from your mobile device to an e-mail address anywhere in the world. Web to Mobile: send a message from a text messaging Web site to a mobile device, or request that a Web site alert a mobile device with messages of breaking news and other updates, such as sports scores, stock prices, and weather forecasts. Mobile to Provider: send a message by entering a common short code (CSC), which is a four- or five-digit number assigned to a specific content or wireless service provider, followed by the message, such as a vote for a television program contestant or an entry for a sweepstakes.

  2. GPS satellites orbit Earth. Every thousandth of a second, each satellite sends a signal that indicates its current position to the GPS receiver. GPS receiver (such as in a car, a wearable device, a smart phone, a handheld device, or a collar) determines its location on Earth by analyzing at least 3 separate satellite signals from the 24 satellites in orbit.

    Individuals use GPS technology by using smart phones or GPS receiver.

  3. A local area network (LAN) is a network that connects computers and devices in a limited geographical area such as a home, school computer laboratory, office building, or closely positioned group of buildings. A metropolitan area network (MAN) is a high-speed network that connects local area networks in a metropolitan area such as a city or town and handles the bulk of communications activity across that region. A wide area network (WAN) is a network that covers a large geographic area (such as a city, country, or the world) using a communications channel that combines many types of media such as telephone lines, cables, and radio waves.

    A wireless LAN (WLAN) is a LAN that uses no physical wires.

  4. A network topology refers to the layout of the computers and devices in a communications network.

    Five types of digital dedicated lines are ISDN lines, DSL, FTTP, T-carrier lines, and ATM.

  5. Three types of digital modems are ISDN modems, DSL modems, and cable modems.

    An ISDN modem sends digital data and information from a computer to an ISDN line and receives digital data and information from an ISDN line. A DSL modem sends digital data and information from a computer to a DSL line and receives digital data and information from a DSL line. A cable modem, sometimes called a broadband modem, is a digital modem that sends and receives digital data over the cable television (CATV) network.

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This entry was posted on December 20, 2012 by .
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