An employee uses a password to log in to a company computer. Which of the following authentication methods did the employee use to gam access to the network?

Single-factor authentication (SFA) involves verifying a user's identity using only one form of authentication credential. In this scenario, the employee uses only a password, which falls into the "something you know" category, making it a single-factor authentication method for gaining access to the network.

Single sign-on (SSO) allows a user to authenticate once and gain access to multiple independent software systems, but doesn't define the number of factors used for the initial authentication.

Permissions define what an authenticated user can access or do, rather than being an authentication method itself.

Multifactor authentication (MFA) requires two or more distinct types of credentials (e.g., something you know, something you have, something you are), which is not the case here since only a password is used.