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MySQL Database Administration MySQL 5.7 Database Administrator

MySQL 5.7 Database Administrator

Last Update May 8, 2024
Total Questions : 124

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Questions 4

Which statement describes how the relay log works?

Options:

when a slave receives a change from the master, it is processed first, and then recorded in the relay log.

It maintains a record of available master binary logs and the current executed log position.

It stores changes on the master, and relays them to the slave.

When a slave receives a change from the master, it is recorded in the relay log first and processed later.

Discussion 0

Questions 5

Why should you be selective when granting the PROCESS privilege to an account?

Options:

It allows a client to process scripts.

It allows the use of stored routines.

It allows a client to see another user’s queries with the SHOW PROCESSLIST command.

It allows a client to control running processes on a server.

Discussion 0

Questions 6

Which two statements are true regarding the creating of new MySQL physical and logical backups? (Choose two.)

Options:

Physical backups can be used to recover from data corruption.

Logical backups are human-readable whereas physical backups are not.

Logical backups are always larger than physical backups.

Physical backups are usually slower than text backups.

Physical backups are usually faster than text backups.

Discussion 0

Questions 7

You are investigating the performance of the server and see this information:

events_waits_summary_global_by_event_name in the Performance Schema shows that the wait/synch/mutex/sql/LOCK_table_cache event is dominating other wait events.
The Table_open_cache_overflows status variable is 0.

Which action should be taken to remove the performance bottleneck described here?

Options:

Increase the value of table_open_cache_instances.

Decrease the value of table_definition_cache.

Decrease the value of table_open_cache.

Increase the value of table_definition_cache.

Increase the value of table_open_cache.

Decrease the value of table_open_cache instances.

Discussion 0

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