To answer this question, you need to understand what a CAPTCHA is and how it works.
A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a security mechanism used to verify that a user is human and not a computer program (bot). It typically involves presenting the user with a challenge that is easy for humans to solve but difficult for computers.
Now let's go through each option to understand why it is correct or incorrect:
Option A) SQL Injection - This option is incorrect because a CAPTCHA is not designed to protect against SQL injection attacks. SQL injection attacks involve inserting malicious SQL statements into an application's database query, and a CAPTCHA does not directly address this vulnerability.
Option B) Buffer Overflow - This option is incorrect because a CAPTCHA is not designed to protect against buffer overflow attacks. Buffer overflow attacks involve overwriting the memory allocated for a buffer, and a CAPTCHA does not directly address this vulnerability.
Option C) Brute Force Attacks - This option is correct because a CAPTCHA can help protect against brute force attacks. Brute force attacks involve systematically trying all possible combinations of a password or encryption key until the correct one is found. By implementing a CAPTCHA, websites can make it more difficult for automated bots to perform brute force attacks as the bots would need to solve the CAPTCHA for each attempt.
Option D) None of the above - This option is incorrect because a CAPTCHA does protect against at least one type of attack, which is brute force attacks.
The correct answer is C) Brute Force Attacks. This option is correct because a CAPTCHA can help protect against brute force attacks by making it more difficult for automated bots to perform these attacks.