Free Access Oracle.1Z0-888.v2022-04-28.q136 Practice Test (Page 3)

Question 6

Which two statements describe how InnoDB recovery works? (Choose two.)

A.There will in general be lost committed transactions after a crash using the default settings.

B.InnoDB handles most crash recoveries automatically.

C.It is recommended to set innodb_force_recovery = 1as part of normal operations.

D.It is required to enable binlog_gtid_simple_recoveryto perform a crash recovery.

E.InnoDB blocks some operations when innodb_force_recoveryis set to greater than 0.

F.It is always required to enable innodb_force_recoveryto perform a crash recovery.

Question 7

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=1024 is too small and transactions are lost.

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

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

D.binlog_format=STATEMENT and a non-deterministic query was executed.

E.sync_binlog=0 and the master server crashed.

Question 8

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.

Question 9

Host slave1 has ip address 192.0.2.10.
Host slave2 has ip address 203.0.113.50
Examine these commands:

Why did this error occur?

A.The host on the command line is not defined in the login path.

B.The .mylogin.cnf file is not readable.

C.The mysqld instance has not been restarted after creating the login path.

D.The DNS is not configured correctly for slave1 host.

E.There is no password defined in the login path.

Question 10

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

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

C.The slave user does not have INSERT, UPDATE, or DELETE permission and cannot execute the Write_rows function.

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

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

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