Question

how is a totp different from an hotp?

a. the timer interval in a totp is configurable but on an hotp it resets on an hourly basis.

b. an hotp changes when a specific event occurs.

c. a totp uses a software token, whereas an hotp uses a hardware token.

d. they both require the most steps to complete the authentication process.

e. a totp is more secure than an hotp.

Explanation:

• HOTP (HMAC - based One - Time Password) is event - based. It changes when a specific event (such as a user request for authentication) occurs.
• TOTP (Time - based One - Time Password) is time - based.
• Option a: TOTP timer intervals are configurable (e.g., 30 seconds), but HOTP is not based on a timer interval in the way described.
• Option c: Both can use software or hardware tokens.
• Option d: This is not a correct differentiating factor.
• Option e: Security depends on various factors and cannot be simply stated that TOTP is more secure than HOTP in all cases.

Answer:

B. An HOTP changes when a specific event occurs.