XK0-005 Question #1287: Real Exam Question with Answer & Explanation

The correct answer is B: HOTP. The scenario describes a hardware token generating a temporary, six-digit code, which is a common implementation of a one-time password (OTP) system.

Security

Question

When logging in, an administrator must use a temporary six-digit code that is displayed on a key fob. Which of the following has been implemented?

Options

ABiometrics
BHOTP
CPKI
DSoftware token

Explanation

The scenario describes a hardware token generating a temporary, six-digit code, which is a common implementation of a one-time password (OTP) system.

Common mistakes.

A. Biometrics involves using unique biological characteristics (like fingerprints or facial recognition) for authentication, not temporary codes from a key fob.
C. PKI (Public Key Infrastructure) uses digital certificates and public/private key pairs for authentication and encryption, which is different from a temporary code generation device.
D. A software token is an application on a smartphone or computer that generates one-time passwords, whereas a key fob is a dedicated hardware device.

Concept tested. One-time password (OTP) technologies, HOTP

Reference. https://learn.microsoft.com/en-us/azure/active-directory/authentication/concept-authentication-methods#oath-hardware-tokens

Topics

#HOTP#One-Time Password#Authentication#Hardware Token

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