What are the requirements for configuring a Samba file server to work in Active Directory mode? (Choose THREE correct answers.)

Using the `net ads join` command is essential to integrate the Samba server as a member server within an Active Directory domain, creating the necessary machine account.

The `realm` parameter in the `smb.conf` file must accurately specify the DNS name of the Active Directory domain to facilitate proper Kerberos authentication.

Time synchronization with the realm server (Active Directory Domain Controller) is a critical requirement for Kerberos authentication, which Active Directory relies upon, to prevent authentication failures.

`winbindd -krb5` is not a standard configuration command for Winbind in ADS mode; Winbind's integration with Kerberos for ADS is configured through `smb.conf` and `krb5.conf`.

While an administrator account is needed to *perform* the `net ads join`, creating a *new* administrator account with `pdbedit` (which manages local Samba accounts) is not a direct requirement for the *server itself* to operate in Active Directory mode.