Mysql OCP 75 questions

Which two methods accurately monitor the size of your total database size over time?
A. monitoring the Innodb_rows_inserted status variable
B. monitoring the innodb_redo_log_size variable
C. monitoring the information_schemA.TABLES table
D. monitoring datadir size in the operating system
E. monitoring cumulative Innodb_page_size increase
F. monitoring the performance_schema_hosts_size variable
Answer: CD
monitoring information_schemA.TABLESTable
Monitoring datadir size in operating system

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MYSQL