study crossword

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Across
  1. 3. advanced research projects agency network
  2. 4. made for computers to communicate seamlessly
  3. 7. global system of interconnected computer networks
  4. 8. defense advanced research project agency
  5. 9. application software
Down
  1. 1. small bits of data sent from a file
  2. 2. blocks data until ransom is paid
  3. 5. operating software by Microsoft
  4. 6. way to check if website is good