Final answer:
A domain user account cannot be used to sign in to a Windows 10 computer that is not part of an Active Directory domain; such accounts require the computer to be a domain member for authentication.
Correct option is A. True
Step-by-step explanation:
The statement that a domain user account can sign-in on a Windows 10 computer that is not a member of an Active Directory domain is False. A domain user account is created and managed through Active Directory, and it is meant to be used on computers that are part of the same domain. Without the computer being a member of the domain, the authentication process cannot occur as the domain's servers are responsible for authenticating the user credentials. For a non-domain member computer, local user accounts are used for sign-in instead.
In a Windows environment, a computer not joined to the domain relies on local user accounts for authentication. Local user accounts are specific to the individual computer and are managed locally rather than through Active Directory.
Therefore, a domain user account cannot sign in on a Windows 10 computer that is not a member of the corresponding Active Directory domain. The authentication process for domain user accounts requires the presence of Active Directory services, and without them, the user must use a local account on the standalone computer.