Networking concepts and Popular e-sevices

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Across
  1. 2. Used to connect compuers in a network
  2. 3. CARD Physically attached to computer
  3. 5. Enables booking facilities online
  4. 7. TOPOLOGY Can handle large volume of data traffic
  5. 8. Group of computers linked together
Down
  1. 1. Transactions are not secure
  2. 4. Use internet to deliver educational content
  3. 6. Computer in a network