The Performance Schema includes these tables related to status variables:Which two facts are true about...

The variable values in global_status are the sum of those in status_by_thread grouped by the variable name.

All these tables have the same number of rows.

The global_status table is equivalent to the SHOW GLOBAL STATUS statement.

The variable values in status_by_account are the sum of those in status_by_host and status_by_user grouped by the variable name.

The session_status table is equivalent to status_by_thread for the current thread.