Which BEST describes a tool (i.e. keyfob, calculator, memory card or smart card) used to supply dynamicpasswords?

A.
Tickets

B.
Tokens

C.
Token passing networks

D.
Coupons

Explanation:
A security token (or sometimes a hardware token, authentication token, USB token, cryptographic token,
software token, virtual token, or key fob) may be a physical device that an authorized user is given to ease
authentication.
Security tokens are used to prove one’s identity electronically (as in the case of a customer trying to access
their bank account). The token is used in addition to or in place of a password to prove that the customer is who
they claim to be. The token acts like an electronic key to access something.
Some may store cryptographic keys, such as a digital signature, or biometric data, such as fingerprint minutiae.
Some designs feature tamper resistant packaging, while others may include small keypads to allow entry of a
PIN or a simple button to start a generating routine with some display capability to show a generated key
number.
All tokens contain some secret information that is used to prove identity. There are different ways in which this
information can be used.
Examples include:
Synchronous dynamic password token: A timer is used to rotate through various combinations produced by
a cryptographic algorithm. The token and the authentication server must have synchronized clocks.
Asynchronous password token: A one-time password is generated without the use of a clock, either from a
one-time pad or cryptographic algorithm.
Incorrect Answers:
A: A tool such as a keyfob, calculator, memory card or smart card used to supply dynamic passwords is not
known as a ticket.
C: Token passing networks are computer networks such as Token Ring or FDDI networks. They do not supply
dynamic passwords.
D: A tool such as a keyfob, calculator, memory card or smart card used to supply dynamic passwords is not
known as a coupon.

https://en.wikipedia.org/wiki/Security_token