多项选择题What are four capabilities of the mysql client program?()

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


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1.多项选择题

Consider the events_% tables in performance Schema.
Which two methods will clear or reset the collected events in the tables?()

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

2.单项选择题

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

3.单项选择题

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

4.多项选择题Which two statements are true about InnoDB auto-increment locking?()

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

5.多项选择题You are using replication and the binary log files on your master server consume a lot of disk space. Which two steps should you perform to safely remove some of the older binary log files?()

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

6.单项选择题

You have a login-path named "adamlocal" that was created by using the mysql_config_editor command. You need to check what is defined for this login_path to ensure that it is correct for you deployment.
You execute this command:
$mysql_config_editor print –login-path=adamlocal What is the expected output of this command?()

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

8.多项选择题

Mysqldump was used to create a single schema backup; Shell> mysqldump –u root –p sakila > sakila2013.sql
Which two commands will restore the sakila database without interfering with other running database?()

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

10.单项选择题

Consider the following statement on a RANGE partitioned table: ALTER TABLE orders DROP PARTITION p1, p3;
What is the outcome of executing the above statement?()

A.A syntax error will result as you cannot specify more than one partition in the same statement
B.All data in p1 and p3 partitions are removed and the table definition is changed
C.All data in p1 and p3 partitions are removed, but the table definition remains unchanged
D.Only the first partition (p1) will be dropped as only one can be dropped at any time

最新试题

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?()

题型:单项选择题

What is true regarding InnoDB locking?()

题型:单项选择题

You need to replicate a table from a master to a slave. The master and slave copies of the table will have different number of columns.Which two conditions must be true?()

题型:多项选择题

A general purpose MySQL instance is configured with the following options:—log-slow-queries—long-query-time=,0001—log-slow-admin-queries—general-log—log-bin—binlog-format=STATEMENT—innodb-flush-log-at-trx-commit=1Which three statements are true()。

题型:多项选择题

Which two capabilities are granted with the SUPER privilege?()

题型:多项选择题

Which two are true regarding MySQL binary and text backups?()

题型:多项选择题

In a test database, you issue the SELECT … INTO OUTFILE statement to create a file with your t1 table data. You then TRUNCATE this table to empty it.()Mysql> SELECT * INTO OUTFILE '/tmp/t1.sql' from t1;mysql> TRUNCATE t1;

题型:多项选择题

Your developers have created table to store some of their program's data.After examining the slow Query Log, you see that they are using the LIKE operator and SUBSTER () functions against a VARCHAR (10000) column quite often.An example of the start of one row of data: 'GREEN01020495888331993-12-10/2…'What should you do to improve the overall performance?()

题型:单项选择题

You have a server that has very limited memory but has a very large table. You will use mysqldump to back up this table.Which option will ensure mysqldump will process a row at a time instead of buffering a set of rows?()

题型:单项选择题

An employee cannot access the company database. You check the connection variables:What is a valid explanation for why one of the users is unable to connect to the database?()

题型:单项选择题