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1z0-888 Exam Dumps : MySQL 5.7 Database Administrator

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MySQL 5.7 Database Administrator Questions and Answers

Question 1

You are using GTIDS in replication. You need to skip a transaction with the GTID of aaa-bbb-ccc-ddd-eee:3 on a slave.

Which procedure would you execute from a MySQL prompt?

Options:

A.

B.

C.

D.

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Question 2

The MySQL installation includes the mysql_config_editor utility for managing login paths stored in a .mylogin.cnf file.

Which two are true about the login path feature? (Choose two.)

Options:

A.

mysql_config_editor is the only MySQL-provided utility that can print the values stored in .mylogin.cnf.

B.

A .mylogin.cnf file can store at most one login path.

C.

It provides a FIPS-compliant keyring for storing MySQL login details.

D.

A .mylogin.cnf file can be edited using a text editor, such as vim or Notepad++.

E.

It is an alternative to storing the MySQL login details in a my.cnf file.

F.

It provides means to help avoid accidentally exposing the MySQL login details.

Question 3

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:

A.

Increase the value of table_open_cache_instances.

B.

Decrease the value of table_definition_cache.

C.

Decrease the value of table_open_cache.

D.

Increase the value of table_definition_cache.

E.

Increase the value of table_open_cache.

F.

Decrease the value of table_open_cache instances.