When two databases are defined in slapd.conf, which of the following commands will provide a full dump of the second database?

The `slapcat -n <db_number>` option allows administrators to select a specific database instance to dump when multiple databases are configured. The `<db_number>` corresponds to the index of the database as defined in the `slapd.conf` file, where '2' would refer to the second database in the configuration order.

`slapcat -2` is not a valid option for specifying the second database; the correct option is `-n` followed by the number.

`slapcat -database 2` uses an incorrect option name; the correct option for specifying the database number is `-n`, not `-database`.

`slap_dumpall` is not a standard OpenLDAP command, and `slapcat` does not use a `-name` option for database selection.