Ch2 Keywords

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Across
  1. 3. (internet protocol): the unique address that is given to a device when it is connected network
  2. 5. a type of error detection method that performs calculation on the data to create a checksum value.
  3. 8. a transmission method where data is sent multiple bits at a time down multiple wires
  4. 10. a section of a packet of data that contains information about any error checking methods that may be used
  5. 11. a transmission method where data is transmitted in both directions at the same time.
  6. 13. the name of data given to data before encryption
  7. 15. a small unit of data
  8. 16. a type of error detection method that sends a copy of the transmitted data back to the sender to be compared with the original data sent.
  9. 17. a method of securing data for storage or transmission that scrambles it and makes it meaningless
  10. 18. an industry standard that is used to transmit data
  11. 19. a type of error detection method that adds an additional bit to each byte to create an odd or even sum
  12. 20. a period of time that is set and used to wait for an acknowledgement to be recieved
Down
  1. 1. a section of a packet of data that contains information about the contents of the packet and its destination
  2. 2. a transmission method where data is transmitted in a single direction only
  3. 4. a type od error detection method that uses acknowledgement and timeout to see if data has arrived correctly after transmission
  4. 6. a transmission method where data is sent one bit at a time down a single wire
  5. 7. the actual data that the user is sending to the receiver
  6. 9. a message that is sent from one device to another to indicate whether data i received correctly
  7. 12. a type of error detection method that is used for data entry. A calculation is performed on the data entered to create a value. Check digit values are compared to see if the data entered is correct.
  8. 13. a method of transmitting data packets across a network. Each data packet is able to take an individual pathway across the network
  9. 14. a transmission method where is transmitted in both directions, but only one direction at a time.