A network administrator uses an RFID card to enter the datacenter, a key to open the server rack, and a username and password to logon to a server. These are examples of which of the following?

The correct answer is B. Single factor authentication. Each of these three access events uses only a single authentication factor in isolation: the RFID card is 'something you have,' the physical key is also 'something you have,' and the username/password is 'something you know.' Although the administrator uses all three during…

General security concepts

Question

Options

AMultifactor authentication
BSingle factor authentication
CSeparation of duties
DIdentification

How the community answered

(52 responses)

A
15% (8)
B
73% (38)
C
4% (2)
D
8% (4)

Explanation

Each of these three access events uses only a single authentication factor in isolation: the RFID card is 'something you have,' the physical key is also 'something you have,' and the username/password is 'something you know.' Although the administrator uses all three during their work session, each individual authentication event relies on exactly one factor at a time - none of the three access points combine multiple factor types simultaneously. Multifactor authentication (MFA) requires presenting two or more different factor types (have + know + are) in the same authentication transaction. Since each step here uses just one factor type independently, each example represents single-factor authentication.

Topics

#authentication factors#single factor authentication#multifactor authentication#access control

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