网友您好, 请在下方输入框内输入要搜索的题目:
题目内容
(请给出正确答案)
While reviewing the MySQL error log, you see occasions where MySQL has exceeded the number of file handles allowed to it by the operating system. Which method will reduce the number of file handles in use?()
- A、Activating the MySQL Enterprise thread pool plugin
- B、Relocating your data and log files to separate storage devices
- C、Disconnecting idle localhost client sessions
- D、Implementing storage engine data compression options
参考答案
更多 “ While reviewing the MySQL error log, you see occasions where MySQL has exceeded the number of file handles allowed to it by the operating system. Which method will reduce the number of file handles in use?()A、Activating the MySQL Enterprise thread pool pluginB、Relocating your data and log files to separate storage devicesC、Disconnecting idle localhost client sessionsD、Implementing storage engine data compression options” 相关考题
考题
While reviewing the MySQL error log, you see occasions where MySQL has exceeded the number of file handles allowed to it by the operating system.Which method will reduce the number of file handles in use?()A.Activating the MySQL Enterprise thread pool pluginB.Relocating your data and log files to separate storage devicesC.Disconnecting idle localhost client sessionsD.Implementing storage engine data compression options
考题
Consider the MySQL Enterprise Audit plugin, You add the following lines to the my.cnf configuration tile: [mysqld] Plugin-load=audit_log.so Audit-log=FORCE_PLUS_PERMANENT You attempt to start up the MySQL service and notice that it fails to start.Which two statements would explain why the service did not start?()A.FORCE_PLUS_PERMANENT is not valid for the audit-log optionB.The audit_log.so library does not existC.The audit_log.so library is in a location that is different from that defined by the plugin_dir optionD.The audit plugin must be loaded dynamically by using the INSTALL PLUGIN commandE.The audit log file does not exist in which to write audit eventsF.The audit_log.so library is not an executable file
考题
A user executes the statement;PURGE BINARY LOGS TO ‘mysql-bin.010‘;What is the result?()
A.It deletes all binary log files, except ‘mysql-in.010‘B.It deletes all binary log files up to and including ‘mysql-bin.010‘C.It deletes all binary log files before ‘mysql-bin.010‘D.It deletes all binary log files after ‘mysql-bin.010‘
考题
MySQL is installed on a Linux server and has the following configuration:What is the purpose of changing ownership of datadir to the ‘mysql’ user?()
A.MySQL requires correct file ownership while remaining secureB.MySQL needs to be run as the root user, but file cannot be owned by itC.MySQL cannot be run as the root user
考题
Consider the MySQL Enterprise Audit plugin.On attempting to start the MySQL service after a crash, notice the following error: [ERROR] Plugin ‘audit_log’ init function returned error.In the audit log file, you notice the final entry:…What action should you take to fix the error and allow the service to start?()A.Re-install the audit pluginB.Execute the command FLUSH LOGSC.Execute the command SET GLOBAL audit_log_fiush= OND.Move or rename the existing audit.log file
考题
The validate_password plugin is loaded and displays the following settings in global variables: Mysql> SHOW VARIABLES LIKE ‘validate_password%’;When attempting to set your password, you get the following error: Mysql> SET PASSWORD = PASSWORD (‘Hoverl@%’);ERROR 1819 (HY000): Your password does not satisfy the current policy requirements What is the cause of the error?()A.The password is eight characters long, but needs to exceed validate_password_length to be validB.All of the MEDIUM password policy requirements have not been honoredC.The password matches a substring Hover as a dictionary wordD.The password does not match the validate_passoword_number_count requirementE.There is no dictionary file defined, so password validation cannot work as expected
考题
You execute the following statement in a Microsoft Windows environment. There are no conflicts in the path name definitions.C: \> mysqld – install Mysql56 – defaults – file = C :\my –opts.cnf What is the expected outcome?()A.Mysql is installed as the Windows service name Mysql56, and uses c: \my-opts.cnf as the configuration fileB.An error message is issued because – install is not a valid option for mysqldC.A running Mysql 5.6 installation has its runtime configuration updated with the server variables set in c: \my-opts.cnfD.Mysqld acts as an MSI installer and installs the Mysql 5.6 version, with the c: \my-opts.cnf configuration file
考题
Consider the Mysql Enterprise Audit plugin. A CSV file called data.csv has 100 rows of data. The stored procedure prepare_db ( ) has 10 auditable statements.You run the following statements in the mydb database: Mysql> CALL prepare_db ( );Mysql> LOAD DATA INFILE ‘/tmp/data.cav‘ INTO TABLE mytable; Mysql> SHOW TABLES;How many events are added to the audit log as a result of the preceding statements?()A.12; only top-level statements and stored procedure events are loggedB.111; top-level statements and all lower-level statements are loggedC.3; only the top-level statements are loggedD.102; top-level statements are logged, but LOAD DATA INFILE is logged as a separate event
考题
Consider the Mysql Enterprise Audit plugin. A CSV file called data.csv has 100 rows of data. The stored procedure prepare_db ( ) has 10 auditable statements. You run the following statements in the mydb database: Mysql> CALL prepare_db ( ); Mysql> LOAD DATA INFILE '/tmp/data.cav' INTO TABLE mytable; Mysql> SHOW TABLES; How many events are added to the audit log as a result of the preceding statements?()A、12; only top-level statements and stored procedure events are loggedB、111; top-level statements and all lower-level statements are loggedC、3; only the top-level statements are loggedD、102; top-level statements are logged, but LOAD DATA INFILE is logged as a separate event
考题
Which statement is true regarding the Archiver (ARCn) process,archived log files,and recovery? ()A、A database backup, combined with archived redo log files, guarantees that all committed data can be recovered to the point of failure. B、During recovery the ARCn background process copies its redo entries identified for recovery by the control file to the data files. C、After each write to an archived log, the mandatory background process ARCn writes its log sequence number and the first and last SCN number within the log sequence to the control file. D、At database recover time, and archived redo log is uniquely identified for recovery use by its redo thread number and destination ID number retrieved from the control file.
考题
Consider the MySQL Enterprise Audit plugin, You add the following lines to the my.cnf configuration tile: [mysqld] Plugin-load=audit_log.so Audit-log=FORCE_PLUS_PERMANENT You attempt to start up the MySQL service and notice that it fails to start. Which two statements would explain why the service did not start?()A、FORCE_PLUS_PERMANENT is not valid for the audit-log optionB、The audit_log.so library does not existC、The audit_log.so library is in a location that is different from that defined by the plugin_dir optionD、The audit plugin must be loaded dynamically by using the INSTALL PLUGIN commandE、The audit log file does not exist in which to write audit eventsF、The audit_log.so library is not an executable file
考题
A technician is attempting to remove a number of viruses from an infected system. The antivirus software in use is fully updated and has detected the viruses. However, a message stating that the file is in use appears when the technician tries to quarantine or delete the infected files. Which of the following can be done to resolve this issue?()A、Change the permissions on the file.B、End the running process.C、Run the antivirus scan again.D、Use the command line to delete the file.
考题
You execute the following statement in a Microsoft Windows environment. There are no conflicts in the path name definitions. C: /> mysqld – install Mysql56 – defaults – file = C :/my –opts.cnf What is the expected outcome?()A、Mysql is installed as the Windows service name Mysql56, and uses c: /my-opts.cnf as the configuration fileB、An error message is issued because – install is not a valid option for mysqldC、A running Mysql 5.6 installation has its runtime configuration updated with the server variables set in c: /my-opts.cnfD、Mysqld acts as an MSI installer and installs the Mysql 5.6 version, with the c: /my-opts.cnf configuration file
考题
You have forgotten the name of binary PL/SQL library saved to the operating system. This file contains the PL/SQL constricts you created for the inventory report. For which file extension should you reach?()A、 .SQL B、 .PLL C、 .PLDD、 .PRT
考题
When performing incomplete recovery using UNTIL SEQUENCE with RMAN, which two pieces of information are required?()A、Thread number.B、Log Sequence number.C、Control file sequence number.D、Name of the last archived log.
考题
A user executes the statement; PURGE BINARY LOGS TO 'mysql-bin.010'; What is the result?()A、It deletes all binary log files, except 'mysql-in.010'B、It deletes all binary log files up to and including 'mysql-bin.010'C、It deletes all binary log files before 'mysql-bin.010'D、It deletes all binary log files after 'mysql-bin.010'
考题
You use—login-path to access a MySQL server on a Linux installation. Which statement is true about the – login-path option that is created by using mysql_config_editor?()A、All system users have access to the MySQL server via—login path localB、login-path can be used only for MySQL servers running on a local machineC、login-path allows you to provide login credentials without passing clear text passwords on the command lineD、When using – login-path to connect to a remote MySQL server, the remote server version must be 5.6 or later
考题
You scheduled a backup by using the Schedule Backup option in Oracle Enterprise Manager. Which statement about the script created by Oracle Enterprise Manager is true? ()A、It is a SQL script.B、It is a PL/SQL file.C、It is an operating system (OS) file.D、It is a Recovery Manager (RMAN) script
考题
You install a copy of Mysql 5.6.13 on a brand new Linux server by using RPM packages. The server starts successfully as verified by the following commands: $ pidof mysqld 3132 $tail – n2 /var/lib.mysql/hostname.err 2013-08-18 08:18:38 3132 [Note] /usr/sbin/mysqld:ready for connections. Version: '5.6.13-enterprise-commercial-advaced' socket:'/tmp/mysql.sock' port; 3306 Mysql Enterprise Server – Advanced Edition (Commercial) You attempt to log in as the root user with the following command: $mysql – u root ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) Which statement is true about this scenario?()A、The RPM installation script sets a default password of password for new installationsB、The local root user must log in with a blank password initially: mysql –u root –pC、New security measures mean that the mysql_secure_installation script must be run first on all new installationsD、The mysql_install_bd post-installation script used – random-password
考题
You received the following error: ORA-01578: ORACLE data block corrupted (file # %s, block # %s) Which file will you check to view additional information regarding the cause of this error?()A、the alert log file and the trace filesB、 the redo log filesC、 the control fileD、 the change tracking file
考题
单选题You have forgotten the root user account password. You decide to reset the password and execute the following: Shell> /etc/init.d/mysql stop Shell> /etc/init.d/mysql start – skip-grant tables Which additional argument makes this operation safer?()A
–skip-networking, to prohibit access from remote locationsB
–reset-grant-tables, to start the server with only the mysql database accessibleC
–read-only,to set all data to read-only except for super usersD
–old-passwords, to start Mysql to use the old password format while running without the grant tables
考题
单选题While reviewing the MySQL error log, you see occasions where MySQL has exceeded the number of file handles allowed to it by the operating system. Which method will reduce the number of file handles in use?()A
Activating the MySQL Enterprise thread pool pluginB
Relocating your data and log files to separate storage devicesC
Disconnecting idle localhost client sessionsD
Implementing storage engine data compression options
考题
单选题You execute the following statement in a Microsoft Windows environment. There are no conflicts in the path name definitions. C: /> mysqld – install Mysql56 – defaults – file = C :/my –opts.cnf What is the expected outcome?()A
Mysql is installed as the Windows service name Mysql56, and uses c: /my-opts.cnf as the configuration fileB
An error message is issued because – install is not a valid option for mysqldC
A running Mysql 5.6 installation has its runtime configuration updated with the server variables set in c: /my-opts.cnfD
Mysqld acts as an MSI installer and installs the Mysql 5.6 version, with the c: /my-opts.cnf configuration file
考题
多选题You want to shutdown a running Mysql Server cleanly. Which three commands that are valid on either Windows or Linux will achieve this?()AShell> mysqladmin –u root –p shutdownBShell> nmc mysql shutdownCMysql> STOP PROCESS mysqldDShell> /etc/init.d/mysql stopEShell> service mysql safe_exitFShell> pkill –u mysql mysqld_safeGShell> net stop mysql
考题
单选题While reviewing the MySQL error log, you see occasions where MySQL has exceeded the number of file handles allowed to it by the operating system. Which method will reduce the number of file handles in use?()A
Activating the MySQL Enterprise thread pool pluginB
Relocating your data and log files to separate storage devicesC
Disconnecting idle localhost client sessionsD
Implementing storage engine data compression options
考题
单选题You have forgotten the name of binary PL/SQL library saved to the operating system. This file contains the PL/SQL constricts you created for the inventory report. For which file extension should you reach?()A
.SQL B
.PLL C
.PLDD
.PRT
热门标签
最新试卷