Multiple choice

Which of the following describes the purpose of "captcha"?

  1. It captures the keystrokes of user types.

  2. It captures the personnel information through the spyware.

  3. It records the web browsing history.

  4. It prevents bots from submitting online forms.

  5. None of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A captcha is program used to verify that a human, rather than a computer, is entering data. Captchas are commonly seen at the end of online forms and ask the user to enter text from a distorted image. By requiring a captcha response, webmasters can prevent automated programs, or "bots," from filling out forms online. 
 

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