Their are dashes between the words

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Across
  1. 8. private network that uses internet technologies, but its resources are made available only to external
  2. 9. limited in range to only a few feet
  3. 10. a portion of a network with a common network address
  4. 11. geographically isolated and connected to form a large internetwork
  5. 12. a computer system controlled by a single organization
  6. 13. geographically dispersed WAN connections that connect multiple LANs
Down
  1. 1. it uses radio signals instead of wires to connect systems together
  2. 2. a network that covers an area as small as a few city blocks to as large as an entire metropolitan city
  3. 3. network made up of an interconnection of local area networks within a limited geographical area, such as a university's campus
  4. 4. network that uses software to control connectivity, management and services between data centers and remote branches
  5. 5. a network in a small geographic area,
  6. 6. a private network that uses internet technologies
  7. 7. a large world-wide public network