Lesson 24 Vocabulary

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Across
  1. 2. Uses coaxial cable to send and receive data.
  2. 5. Acts as an intermediary between a user and the Internet to ensure security, administrative control, and caching service.
  3. 7. Method of high-level security that examines a fingerprint, voice pattern, or the iris or retina of the eye and matches it with the original entry in the system.
  4. 10. A software program such as Internet Explorer.
  5. 14. A network designed for the exclusive use of people within an organization.
  6. 16. connection speeds more than 30 times faster than dial-up connections.
  7. 21. Small, simple, inexpensive device that joins multiple computers together.
  8. 22. Special hardware and software that protect individual companies' networks from external networks.
  9. 23. A device on a network; generally shares resources such as printers, software, and other hardware.
  10. 24. Connects personal computers, workstations, and other devices such as printers and scanners in a limited geographical area
Down
  1. 1. Software architectural model relationship.
  2. 3. A variation of a LAN that uses no physical wires.
  3. 4. Covers a large geographical area and can contain communication links across metropolitan, regional, or national boundaries.
  4. 5. World's collection of interconnected commercial and government-owned voice-oriented systems.
  5. 6. Internet connection technology that provides for the transfer of information to a computer
  6. 8. Device that enables a computer to transmit voice data over telephone lines.
  7. 9. Connects two or more LANS to form a WAN.
  8. 11. allows specific users outside of the organization to access internal information systems.
  9. 12. A type of fiber-optic telephone line that can transmit up to 1.544 megabits per second.
  10. 13. Person who breaks into computer systems to steal services and information.
  11. 15. Can include telephone systems, fiber optics, satellites, microwaves, or any combination of these.
  12. 17. Worldwide system composed of thousands of smaller networks.
  13. 18. High-end program designed to provide network control that includes special functions for connecting computers and other devices into a network.
  14. 19. A network in which all the computers are equal; no computer is designated as the server.
  15. 20. Hardware such as a mail server, a database server, an FTP server, an application server, or a Web server.
  16. 25. A recent wireless technology that can deliver maximum speeds of up to 7 Mbps to your cell phone, home computer, or car.