Structure of the Internet

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Across
  1. 5. The full address of an Internet resource. (7,8,7)
  2. 10. A network of networks set up to allow computers to communicate with one another. (8)
  3. 14. A hierarchical naming system for computers, services, or other resources connected to the Internet. (6,4,6)
  4. 15. An organization that provides a services for accessing, using, or participating in the Internet. (8,7,8)
  5. 17. Application software for accessing the World Wide Web. (3,7)
  6. 18. A collection of web pages that reside on the computers connected to the Internet. (5,4,3)
  7. 19. A software system that is designed to carry out web searches. (6,6)
  8. 20. A network that relies on 3rd party carriers or connections such as those provided by BT. (4,4,7)
  9. 21. A network which has a central node (which may be a switch or a computer) which acts as a router to transmits messages. (4)
Down
  1. 1. Have worldwide databases that hold records of all the domain names currently issued to individuals and companies.
  2. 2. A network that consists of a number of computing devices on a single site or in a single building.
  3. 3. The city in which CERN is located. (6)
  4. 4. These devices are used to connect at least two networks commonly two WANs or LANs together.
  5. 6. Refers to a specific layout of a local area network. (8)
  6. 7. Developed the concept of the world wide web.(3,3,7,3)
  7. 8. A domain name that includes the host server name. (5,9)
  8. 9. Created by a US defence project in the 1960s. (7)
  9. 11. A network where all computers are connected to a single cable. (3)
  10. 12. Hold records of existing website names and the details of those domains that are currently available to purchase. (8,10)
  11. 13. Identifies the area of domain that an internet resource resides in.
  12. 16. A unique address that is assigned to a network device. (8,8)