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

题目
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 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

相似考题

1.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

2.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

3.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

4.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

更多“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”相关问题

  • 第1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 valid

    B.All of the MEDIUM password policy requirements have not been honored

    C.The password matches a substring Hover as a dictionary word

    D.The password does not match the validate_passoword_number_count requirement

    E.There is no dictionary file defined, so password validation cannot work as expected


    参考答案：D

  • 第2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 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


    参考答案：C

  • 第3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.

    正确答案:A

  • 第4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 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

    正确答案:A

  • 第5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 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

    正确答案:C

  • 第6题：

    单选题
    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 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


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    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 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


    正确答案： B
    解析： 暂无解析

  • 第8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 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


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    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 plugin

    B

    Execute the command FLUSH LOGS

    C

    Execute the command SET GLOBAL audit_log_fiush= ON

    D

    Move or rename the existing audit.log file


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    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'


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    Which MySQL utility program should you to process and sort the slow Query log based on query time or average query time?（）
    A

    Mysqlaccess

    B

    Mysqldump

    C

    Mysqlshow

    D

    Mysqlslow

    E

    Mysqldumpslow


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    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.


    正确答案： A
    解析： 暂无解析

  • 第13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 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


    参考答案：A

  • 第14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 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

    正确答案:C

  • 第15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 option
    • B、The audit_log.so library does not exist
    • C、The audit_log.so library is in a location that is different from that defined by the plugin_dir option
    • D、The audit plugin must be loaded dynamically by using the INSTALL PLUGIN command
    • E、The audit log file does not exist in which to write audit events
    • F、The audit_log.so library is not an executable file

    正确答案:B,C

  • 第16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.

    正确答案:A,C

  • 第17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 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

    正确答案:D

  • 第18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 locations

    B

    –reset-grant-tables, to start the server with only the mysql database accessible

    C

    –read-only,to set all data to read-only except for super users

    D

    –old-passwords, to start Mysql to use the old password format while running without the grant tables


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    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 secure

    B

    MySQL needs to be run as the root user, but file cannot be owned by it

    C

    MySQL cannot be run as the root user


    正确答案： C
    解析： 暂无解析

  • 第20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 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


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    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 local

    B

    login-path can be used only for MySQL servers running on a local machine

    C

    login-path allows you to provide login credentials without passing clear text passwords on the command line

    D

    When using – login-path to connect to a remote MySQL server, the remote server version must be 5.6 or later


    正确答案： A
    解析： 暂无解析

  • 第22题：

    单选题
    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 valid

    B

    All of the MEDIUM password policy requirements have not been honored

    C

    The password matches a substring Hover as a dictionary word

    D

    The password does not match the validate_passoword_number_count requirement

    E

    There is no dictionary file defined, so password validation cannot work as expected


    正确答案： C
    解析： 暂无解析

  • 第23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?（）
    A

    Shell＞ mysqladmin –u root –p shutdown

    B

    Shell＞ nmc mysql shutdown

    C

    Mysql＞ STOP PROCESS mysqld

    D

    Shell＞ /etc/init.d/mysql stop

    E

    Shell＞ service mysql safe_exit

    F

    Shell＞ pkill –u mysql mysqld_safe

    G

    Shell＞ net stop mysql


    正确答案： G,E
    解析： 暂无解析

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