Cambridge lower secondary book 7 ICT (Maryam) unit 3

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Across
  1. 2. unscramble data to its original form so that it can be understood
  2. 4. interference data signal that can happen when electricity energy in one cable causes an unwanted effect in another cable
  3. 6. the part of a text base website address that is the file name for a web page
  4. 9. a set of rules and standards that devices use when communicating
  5. 10. a text base address for a web server
  6. 11. Wireless data transmission that becomes weaker when passing through objects like solid walls or over a long distance.
  7. 12. an unexpected sudden increase in electric voltage or current
Down
  1. 1. distribution of a data signal caused by radio waves crashing into other radio waves
  2. 3. that accidentally occurs in computer data causing changes or damage to the original data
  3. 5. and encryption algorithm the steps of a method of encryption data
  4. 7. using knowledge of computing to give a goal or overcome an obstacle Often by doing something unusual and security hacking is when the person explores raise of getting into a computer system that does not have authorized access
  5. 8. made up of the languages of ones and zeros computer used to store all that is the binary number system is a base -2 system that only has two different values