Free Access Oracle.1Z1-888.v2022-09-10.q127 Practice Test (Page 16)

Question 71

A MySQL database uses all InnoDB tables and is configured as follows;

You will be setting up a replication slave by using mysqldump. You will need a consistent backup taken from your running production server. The process should have minimal impact to active database connections.
Which two arguments will you pass to mysqldump to achieve this?

A.--skip-opt

B.--single-transaction

C.--lock-all-tables

D.--master-data

E.--create-apply-log

Question 72

You have a MySQL replication setup and you intentionally stop the SQL thread on the slave.

What are two reasons that you may stop the SQL thread on the slave while keeping the I/O thread running? (Choose two.)

A.to allow a backup to be created under reduced load

B.to allow the remaining events to be processed on the slave while not receiving new events from the master

C.to prevent any transaction experiencing a deadlock

D.to prevent schema changes from propagating to the slave before they are validated

E.to allow for point-in-time recovery on the slave

Question 73

Which statement describes how the relay log works?

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

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

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

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

Question 74

Consider:

Which statement best describes the meaning of the values in the ref columns?

A.world.City.CountryCode is used to sort the rows in the Citytable.

B.No indexed columns are used to select rows from the City table. The world.City.CountryCode column is used to select rows in the Country table.

C.No indexed columns are used to select rows from the Countrytable. The world.City.CountryCode column is used to select rows in the City table.

D.world.City.CountryCodeis used as the primary key for the Country table.

Question 75

You attempt to connect to a MySQL Server by using the mysql client program. However, you receive this notice:

What would you run to fix the issue?

A.the mysql client with the --enable-cleartext-plugin option

B.the mysql_upgrade script

C.the mysql_secure_installation script to update server security settings

D.the mysql client with the --ignore-password-hashing option

E.the install plugin command for the mysql_cleartext_password plugin

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