Online Access Free Oracle.1Z0-888.v2022-02-17.q133 Practice Test (Page 27)

1Z0-888 Exam Question 126

You have just created a replication slave from a backup of the master made with mysqldump:

You try to log in to the slave with the application user, but fail as follows:

The login works on the master.
Which two changes to the process can fix the issue?

A.After the restore, log in to the database and execute FLUSH PRIVILEGES.

B.Use the --flush-privilegeswith mysqldump.

C.Add a second dump for the 'mysql' database; --all-databasesdoes not include it.

D.Use the --grantsoption to include GRANTstatements in the dump.

1Z0-888 Exam Question 127

A MySQL instance has this configuration values set:

A transaction involving a single InnoDB INSERTstatement commits.
Which list of locations is in the sequence of disk writes for this transaction?

A.binary log, redo log, doublewrite buffer, and tablespace

B.redo log, doublewrite buffer, tablespace, and binary log

C.redo log, binary log, doublewrite buffer, and tablespace

D.doublewrite buffer, redo log, tablespace, and binary log

1Z0-888 Exam Question 128

Consider the CHECK TABLEcommand.
In which two situations should this command be used? (Choose two.)

A.to find out why a query takes a long time to execute on a given table

B.to make sure a table has no structural problems

C.to improve performance by updating index distributing statistics on InnoDB tables

D.to repair table structure problem

E.to make sure that no table indexes are corrupted

1Z0-888 Exam Question 129

A MySQL replication slave is set up as follows:
* Uses all InnoDB tables
* Receives ROW-based binary logs
* Has the read-only option
The replication slave has been found in an error state.
You check the MySQL error log file and find these entries:

What are two possible causes for this error to occur? (Choose two.)

A.The slave was created with mysqldump -u root -p --skip-lock-tables -all-databases > / data/data.sql

B.The slave user does not have INSERT, UPDATE, or DELETEpermission and cannot execute the Write_rowsfunction.

C.The root user on the slave has executed FLUSH LOGS, causing the relay-log to doublewrite.

D.The applications have the SUPERprivilege, which allows them to update rows.

E.For tables with UNIQUE keys, statement-based replication must be used to maintain integrity.

1Z0-888 Exam Question 130

Which three options are most likely to be changed for production form their default values? (Choose three.)

A.innodb_log_file_size

B.max_user_connections

C.innodb_buffer_pool_size

D.max_connections

E.character_set_system

F.port

G.join_buffer_size

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1Z0-888 Exam Question 126

1Z0-888 Exam Question 127

1Z0-888 Exam Question 128

1Z0-888 Exam Question 129

1Z0-888 Exam Question 130

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