In Informatics 9

In Informatics 9.x, which is true about domain configuration backup using the infasetup command line program'?

A) It Backs up the domain database and all service databases that are part of that domain.
B) It backs up domain metadata to another domain database.
C) It backs up the domain configuration to a binary file.
D) It backs up the domain to two binary files, one of which holds an index and the other the data.