Online Access Free Oracle.1Z1-888.v2022-02-09.q146 Practice Test (Page 18)

1Z1-888 Exam Question 81

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?

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 DELETE permission and cannot execute the Write_rows function.

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

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

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

1Z1-888 Exam Question 82

Consider the join_buffer_sizeparameter in MySQL Server.
Which two statements are true about the join buffer?

A.The join buffer is used to process sorts when complex joins are being performed.

B.The value should be increased from the default if the query joins large rows without using an index.

C.The join buffer is set per connection.

D.The join buffer is global and can be changed only by restarting the server.

E.The value should be increased if the client performs several SELECToperations.

1Z1-888 Exam Question 83

You have forgotten the rootuser account password. You decide to reset the password and execute:

Which additional argument makes this operation safer?

A.--old-passwords, to start MySQL to use the old password format while running without the grant tables.

B.--reset-grant-tables, to start the server with only the mysql database accessible.

C.--read-only, to set all data to read-only except for super users

D.--skip-networking, to prohibit access from remote locations

1Z1-888 Exam Question 84

A master-slave replication setup has the slave showing this error:

On the master server, the binary logs show:

What could explain this error? (Choose two.)

A.binlog_cache_size=1024is too small and transactions are lost.

B.binlog_format=STATEMENTand a non-deterministic query was executed.

C.enforce_gtid_consistency=ONand consistency is broken between the master and the slave.

D.The sync_relay_log=1000setting on the slave is too small.

E.sync_binlog=0and the master server crashed.

1Z1-888 Exam Question 85

You back up by using mysqldump.
Which configuration is required on the MySQL Server to allow point-in-time recovery?

A.gtid_enable

B.binlog_format=STATEMENT

C.log-bin

D.bonlog_format=ROW

E.apply-log

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1Z1-888 Exam Question 81

1Z1-888 Exam Question 82

1Z1-888 Exam Question 83

1Z1-888 Exam Question 84

1Z1-888 Exam Question 85

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