Cisco Cyber Security Practice Exam

Which of the following methods is used for identity verification involving physical traits?

1. Something you have

2. Something you know

3. Something you are

4. Something you do

The correct answer is: Something you are

Identity verification involving physical traits is categorized under "something you are." This method relies on biometrics, which includes characteristics such as fingerprints, facial recognition, iris scans, and voice recognition. Biometrics are unique to each individual and provide a strong level of security because they are inherently tied to the person being verified, making them difficult to replicate or forge. In contrast, the other methods have different bases for verification. "Something you have" refers to physical items like security cards or tokens that can grant access. "Something you know" involves knowledge-based verification, such as passwords or PINs, which can be forgotten or stolen. Finally, "something you do" refers to behavioral characteristics such as patterns of typing or walking. While these methods are valid forms of authentication, they do not directly involve physical traits, which makes "something you are" the correct choice for identity verification based on physical characteristics.