Which of the following is NOT a type of Android passcode lock that your users can set?
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Drawn pattern
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CAPTCHA
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Password
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Numeric PIN
EXPLANATION
CAPTCHA: Telling Humans and Computers Apart Automatically
A CAPTCHA is a program that protects websites against bots by generating and grading tests that humans can pass but current computer programs cannot. For example, humans can read distorted text as the one shown below, but current computer programs can't:
The term CAPTCHA (for Completely Automated Public Turing Test To Tell Computers and Humans Apart) was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper and John Langford of Carnegie Mellon University.
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