Crossword

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Across
  1. 2. What is the term used for a type of computer hardware that converts data into a format suitable for transmission over a network?
  2. 4. What is the most widely used mobile operating system?
  3. 5. What technology is used to enable low-power communication between IoT devices?
Down
  1. 1. Which of the following command is used to trigger the Amazon echo IoT device?
  2. 3. What is an open, programmable USB microcontroller