多项选择题X 纠错
A.Syntax when writing queries involving JOINS
B.Memory usage when working with the data
C.Character set mapping index hash size
D.Disk usage when storing data
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单项选择题
A.The RPM installation script sets a default password of password for new installations
B.The local root user must log in with a blank password initially: mysql –u root –p
C.New security measures mean that the mysql_secure_installation script must be run first on all new installations
D.The mysql_install_bd post-installation script used – random-password
多项选择题
A.Creating, dropping, and modifying tables and indexes
B.Initiating a binary backup of the database by using the START BACKUP command
C.Displaying replication status information
D.Shutting down the server by using the SHUTDOWN command
E.Creating and dropping databases
F.Creating and administering users
多项选择题
A.Using DELETE statements, for example, DELETE FROM performance_schema.events_watis_current
B.Using the statement RESET PERFORMANCE CACHE
C.Using the statement FLUSH PERFORMANCE CACHE
D.Using TRUNCATE statements, for example, TRUNATE TABLE performance_schema.events_waits_current
E.Disabling and re-enabling all instruments
F.Restarting Mysql
单项选择题
A.Mysql is installed as the Windows service name Mysql56, and uses c: \my-opts.cnf as the configuration file
B.An error message is issued because – install is not a valid option for mysqld
C.A running Mysql 5.6 installation has its runtime configuration updated with the server variables set in c: \my-opts.cnf
D.Mysqld acts as an MSI installer and installs the Mysql 5.6 version, with the c: \my-opts.cnf configuration file
单项选择题
A.12; only top-level statements and stored procedure events are logged
B.111; top-level statements and all lower-level statements are logged
C.3; only the top-level statements are logged
D.102; top-level statements are logged, but LOAD DATA INFILE is logged as a separate event
多项选择题
A.The auto-increment lock can be a table-level lock
B.InnoDB never uses table-level locks
C.Some settings for innodb_autoinc_lock_mode can help reduce locking
D.InnoDB always protects auto-increment updates with a table-level lock
多项选择题
A.Use the command PURGE BINARY LOGS and specify a binary log file name or a date and time to remove unused files
B.Execute the PURGE BINARY LOGE NOT USED command
C.Remove all of the binary log files that have a modification date earlier than today
D.Edit the .index file to remove the files you want to delete
E.Ensure that none of the attached slaves are using any of the binary logs you want to delete
单项选择题
A.The command prints all parameter for the login-path. The password is replaced with stars
B.The command prints the encrypted entry for the login-path. The is only possible to see if an entry exists
C.The command prints all parameters for the login-path. The password is shown only when you provide the –password option
D.The command prints all parameters for the login-path. The password is printed in plain tex
单项选择题
A.The Query Cache is pruning queries due to an increased number of requests
B.Query_cache_min_res_unit has been exceeded, leading to an increased performance overhead due to additional memory block lookups
C.Mutex contention on the Query Cache is forcing the queries to take longer due to its singlethreaded nature
D.The average resultset of a query is increasing due to an increase in the number of users requiring SQL statement execution
多项选择题
A.Mysql> USE sakila; LOAD DATA INFILE 'sakila2013.sql';
B.Shell> mysql –u root –p sakila sakila2013.sql
C.Shell> mysql import –u root –p sakila sakila2013.sql
D.Shell> mysql –u root -p –e 'use sakila; source sakila2013.sql'
E.Shell> mysql –u root –p –silent < sakila2013.sql