Online Access Free Oracle.1Z0-888.v2022-02-17.q133 Practice Test (Page 14)

1Z0-888 Exam Question 61

What three are correct statements about MySQL backups? (Choose three.)

A.They are used to set up the initial binary log files.

B.They are used to prevent data corruption.

C.They are used to prevent data theft.

D.They are used to set up a replication slave.

E.They are used to recover data.

F.They are used to set up a test system.

1Z0-888 Exam Question 62

Which two statements describe how InnoDB recovery works?

A.It is always required to enable innodb_force_recovery to perform a crash recovery.

B.InnoDB blocks some operations when innodb_force_recovery is set to greater than 0.

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

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

E.InnoDB handles most crash recoveries automatically.

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

1Z0-888 Exam Question 63

old_alter_tableis disabled as shown.
mysql> SELECT @@old_alter_table;

Consider this statement on a RANGE-partitioned table:
mysql> ALTER TABLE orders DROP PARTITION p1, p3;
What is the outcome of executing this statement?

A.Only the first partition (p1) will be dropped because only one partition can be dropped at any time.

B.It results in a syntax error because you cannot specify more than one partition in the same statement.

C.All data in p1 and p3 partitions is removed, but the table definition remains unchanged.

D.All data in p1 and p3 partitions is removed and the table definition is changed.

1Z0-888 Exam Question 64

The MySQL error log shows:
InnoDB: Warning: a long semaphore wait:
The relevant parts of the InnoDB monitor output shows:

Which two options would help avoid the long wait in the future?

A.Increase the value of the innodb_lock_wait_timeoutoption.

B.Increase the size of the InnoDB buffer pool.

C.Set the value of innodb_adaptive_hash_indexto zero.

D.Deactivate the query cache.

E.Change the table to use HASH indexes instead of BTREE indexes.

F.Increase the value of the innodb_read_io_threadsoption.

1Z0-888 Exam Question 65

You need to dump the data from the master server and import it into a new slave server.
Which mysqldump option can be used when dumping data from the master server in order to include the master server's binary log information?

A.master-data

B.master-binlog

C.include-log-file

D.include-master-info

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