Lesson 25 Crossword Review

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Across
  1. 2. type of network used in the city
  2. 3. the term client/server network describes a network design______.
  3. 6. type of connection that uses regular copper telephone lines
  4. 9. type of channels that includes telephone systems, fiber optics, satellites or microwaves
  5. 12. a group of two or more computers linked together
  6. 14. consist of special hardware and software that protect you from external networks
  7. 15. wireless networks have many ______ and hackers have found it easy to access wireless networks
  8. 18. similar to the intranet, but allows specific user to access internal systems.
  9. 19. supports telephone service and is the world's collection of interconnected systems
  10. 20. hardware used to access the client
  11. 22. most lans connect personal computers in a ______ geographical area.
  12. 24. type of modem that uses a coaxial cable to send and receive data
  13. 25. a device on a network
Down
  1. 1. server operating system are designed to _________ network control
  2. 2. convert analog signals to digital
  3. 4. type of network used in a school
  4. 5. people who break into computer systems
  5. 7. the most common form of restricting access to data
  6. 8. type of communication hardware
  7. 10. type of code that is a disadvantage to networks
  8. 11. designed for exclusive use of people within an organization
  9. 13. provides connection speeds 30 times faster than DSL
  10. 14. system__________ can be caused by natural disasters
  11. 16. worldwide system composed of thousands of smaller networks
  12. 17. type of network used in the U.S.A.
  13. 19. switchboard through a firewall
  14. 21. software program such as Internet explorer
  15. 23. a wan covers a ________ geographical area