concepts associated with network requirements.

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Across
  1. 1. handles connection to the network by the higher layers
  2. 5. Define the rules that govern the communications between two computers connected to the network
  3. 8. a communication computer that connects different types of networks using different protocols
  4. 9. a device on a network can be thought of as this
  5. 11. Manages sessions among applications
  6. 15. provides end-to-end errors detection and correction
  7. 16. defines the physical characteristics of the network
  8. 17. allows the constitution of communication groups (newsgroups) organized around specific topics
  9. 18. type of network that covers buildings
  10. 19. allows the management of the network
  11. 20. provides safe communication of data over the physical network
Down
  1. 2. Consists of only 4 layers
  2. 3. Consists of only 7 layers
  3. 4. allows the transfer of collection of files between two machines connected to the Internet
  4. 6. Numeric quantities that are easy for computers with but not for humans to remember
  5. 7. provides standard data representations for applications
  6. 10. type of networks that covers cities
  7. 12. defines a basic service for electronic mails
  8. 13. allows a user to connect to a remote host in terminal mode
  9. 14. applications connected to the network