COMPUTER FUNDAMENTALS

INTRODUCTION TO COMPUTERS

COMPUTER NETWORKS AND THE INTERNET

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is captcha?
A
A game with flags.
B
A challenge-response test that determines whether a user is human or an automated bot.
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -What is a CAPTCHA? A CAPTCHA test is designed to determine if an online user is really a human and not a bot. CAPTCHA is an acronym that stands for “Completely Automated Public Turing test to tell Computers and Humans Apart.” Users often encounter CAPTCHA and reCAPTCHA tests on the Internet.

Detailed explanation-2: -reCAPTCHA, introduced by Google in 2007 [48], is a CAPTCHA technologythat allows web hosts to differentiate between humans and bots for accessing thewebsites. It requires no text, image, audio, or video data to pass. It only takesone mouse click to tell the computer whether there is a human on the other endof the line.

Detailed explanation-3: -ReCAPTCHA also has a new algorithm that can tell if you’re human or not without asking for verification. The program considers your browsing history and how often it changes. reCAPTCHAs machine learning software decides whether you are an actual human based on those factors.

There is 1 question to complete.