Lesson 24 Vocabulary

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Across
  1. 4. A device that uses coaxial cable to send and receive data
  2. 5. Special hardware and software that protect individual companies' networks from external networks.
  3. 7. Connects two or more LANS to form a WAN.
  4. 8. A recent wireless technology that can deliver maximum speeds of up to 7 Mbps to your cell phone, home computer, or car.
  5. 9. Small, simple, inexpensive device that joins multiple computers together.
  6. 10. A computer that uses the services of another program
  7. 11. Person who breaks into computer systems to steal services and information
  8. 13. Computer configuration in which one or more computers on the network acts as a server
  9. 14. World's collection of interconnected commercial and government-owned voice-oriented systems.
  10. 15. Worldwide system composed of thousands of smaller networks
  11. 16. A network in which all the computers are equal; no computer is designated as the server
  12. 20. A technique or device that examines a fingerprint, voice pattern or the iris of retine of the eye
  13. 22. Connects personal computers, workstations, and other devices such as printers and scanners in a limited geographical area.
  14. 23. type of fiber-optic telephone line that can transmit up to 1.544 megabits per second
  15. 25. Acts as an intermediary between a user and the Internet to ensure security, administrative control, and caching service.
Down
  1. 1. A device on a network; generally shares resources such as printers, software, and other hardware
  2. 2. High-end program designed to provide network control that includes special functions for connecting computers and other devices into a network.
  3. 3. An Internet connection technology that provides for the transfer of information to a computer at a high-speed bandwidth over ordinary copper telephone lines.
  4. 6. Covers a large geographical area and can contain communication links across metropolitan, regional, or national boundaries.
  5. 8. Provides connection speeds more than 30 times faster than dial-up connections.
  6. 12. A computer that handles request of data, e-mail, file transfers, and other network services from other computers
  7. 17. Similar to an intranet, but allows specific users outside of the organization to access internal information systems.
  8. 18. A variation of a LAN that uses no physical wires
  9. 19. Device that enables a computer to transmit voice data over telephone lines
  10. 21. Link from one computer to another through which data can be transmitted
  11. 24. A network designed for the exclusive use of people within an organization