At least zero is better than NULL.

Try another Internet Quiz:

• InternetMedium
  What abbreviation could be described as "telephone over the Internet?"
• InternetHard
  What does the "X" in XHTML stand for?

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• HardwareEasy
  Which of the following is both an input and output device?
• SoftwareEasy
  Which operating system is developed by Google?
• GeneralEasy
  What process scrambles information so that it must be decoded to be recognized?