CN RIDDLE

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Across
  1. 1. STAR
  2. 5. BUS
  3. 6. 4TH LAYER
  4. 8. FIRST NETWORK
  5. 11. FIBER LIGHT
  6. 12. STRUCTURE OF NETWORK
  7. 14. UNGUIDED
  8. 17. DLL
  9. 18. DNA
  10. 20. CONNECTING 2 COUNTRIES
Down
  1. 2. PAN
  2. 3. BUS
  3. 4. NETWORK
  4. 7. DLL
  5. 9. N/W MODEL
  6. 10. ERROR CORRECTION
  7. 13. MASTER
  8. 15. NETWORK LAYER
  9. 16. MODEL
  10. 19. RING