CN Puzzle

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Across
  1. 4. interface between applications and the network services
  2. 5. responsible for creating, maintaining and updating the zone files
  3. 8. interprocess communication technique that is used for client-server based applications
  4. 10. first component of an electronic mail system
  5. 12. An arrangement of bytes when data is transmitted over the network
  6. 13. reliable, message-oriented transport-layer protocol
  7. 14. Replacement of old unsecure Telnet program
  8. 17. Many to one relationship
  9. 19. a protocol that uses the services of UDP on the well-known port 69.
  10. 20. Identifies connection of a host to the internet.
Down
  1. 1. collection of webpages
  2. 2. data is carried as?
  3. 3. message consists of header and question records.
  4. 6. defining multiple IP addresses in each end for an association
  5. 7. general-purpose client/server application program
  6. 9. used to end communication with socket descriptor
  7. 11. Byte-oriented protocol
  8. 15. Replacement of old unsecure Telnet program
  9. 16. Retrieve file command
  10. 18. Connectionless, unreliable transport protocol