CompTIA Security+ (SY0-501) — Question 516

Using a one-time code that has been texted to a smartphone is an example of:

Answer options

• A. something you have.
• B. something you know.
• C. something you do.
• D. something you are.

Correct answer: A

Explanation

The correct answer is 'A' because a one-time code sent to a smartphone represents a physical device that the user possesses. The other options refer to knowledge-based factors, behavioral factors, and biometric factors, which do not apply in this scenario.