Answer:A
Q32.Examine these statements and output:
Mysql>GRANT PROXY ON accounting@locahost TO ‘’@’%’;
Mysql>SELECT USER(),CURRENT_USER(),@@PROXY_USER;
+-------------------+---------------------+----------------+
|USER() |CURRENT_USER() |@@proxy_user|
+-------------------+---------------------+----------------+
|jsmith@loaclhost | accounting@localhost |’’@’% |
+-------------------+---------------------+----------------+
Which statement is true?
A)The user failed to define a username and the connecting username defaulted to ' '@'%'.
B)The user is authorized as the rsmith@localhost user.
C)The user is authenticated as the anonymous proxy user ' '@'%'.
D)The user is authorized as the accounting@localhost user.
E)The user is logged in with --user=accounting as an option.
Answer:D
Q33.Which are three benefits of using mysqlbackup instead of mysqldump?
A)mysqlbackup restores data from physical backups, which are faster than logical backups.
B)mysqlbackup can back up tables with the InnoDB engine without blocking reducing wait times due to contention.
C)mysqlbackup allows logical backups with concurrency resulting in faster backups and restores.
D)mysqlbackup does not back up MySQL system tables, which shortens backup time.
E)mysqlbackup can perform partial backup of stored programs.
F)mysqlbackup integrates tape backup and has the virtual tape option.
Answer:ABF
Q34.Which two statements are true about the mysqld-auto.cnf file?
A)This file is for storing MySQL Server configuration options in JSON format.
B)This file is for logging purposes only and is never processed.
C)This file is for storing MySQL server_uuid values only.
D)It is read and processed at the beginning of startup configuration.
E)It is read and processed at the end of startup configuration.
F)It is always updated with changes to system variables.(SET PERSIST 和 SET PERSIST_ONLY 才会 update 它)
Answer:AE
Q35.Examine this command, which executes successfully:
$mysqlbackup --user=dba --password --port=3306 --with-timestamp --only-know-file-types
--backup-dir=/exprot/backups backup
Which statement is true?
A)Only tables stored in their own tablespaces are backed up.
B)Only non-encrypted files are backed up.
C)The backup includes only data files and their metadata.
D)Only InnoDB data and log files are backed up.
E)Only files for MySQL or its built-in storage engines are backed up.