Which three statements accurately describe the /etc/nsswitch.conf file? (Choose three.)

A.
The lookup order for each item is specified in the /etc/nsswitch.conf file.

B.
The /etc/nsswitch.conf file must be created manually as part of the installation process.

C.
The /etc/nsswitch.conf file can specify a number of data sources, such as NIS, NIS+, LDAP, DNS, or local files.

D.
The /etc/nsswitch.conf file is only necessary if multiple data sources are being used to track IP addresses, users, and groups.

E.
The /etc/nsswitch.conf file includes a list of databases that are sources of information about IP addresses, users, and groups.

F.
Each data item in the /etc/nsswitch.conf file must have at least one data source, but cannot have more than three data sources.