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Code d'Examen: 1z0-590
Nom d'Examen: Oracle (Oracle VM 3 for x86 Essentials)
Questions et réponses: 82 Q&As
Code d'Examen: 1z0-883
Nom d'Examen: Oracle (MySQL 5.6 Database Administrator)
Questions et réponses: 100 Q&As
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NO.1 In a design situation, there are multiple character sets that can properly encode your data.
Which three should influence your choice of character set?
A. Disk usage when storing data
B. Syntax when writing queries involving JOINS
C. Comparing the encoded data with similar columns on other tables
D. Memory usage when working with the data
E. Character set mapping index hash size
Answer: C,D,E
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NO.2 Which query would you use to find connections that are in the same state for longer than
180 seconds?
A. SHOW FULL PROCESSLIST WHEER Time > 180;
B. SELECT * FROM INFORMATION_SCHEMA.EVENTS SHERE STARTS < (DATE_SUB (NOW ( ), INTERVAL
180 SECOND) );
C. SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE STATE < (DATE_SUB (NOW ( ),
INTERVAL 180 SECOND) );
D. SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST WHERE TIME > 180;
Answer: A
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NO.3 Assume that you want to know which Mysql Server options were set to custom values.
Which two methods would you use to find out?
A. Check the configuration files in the order in which they are read by the Mysql Server and
compare them with default values.
B. Check the command-line options provided for the Mysql Server and compare them with default
values.
C. Check the output of SHOW GLOBAL VARIABLES and compare it with default values.
D. Query the INFORMATION_SCHEMA.GLOBAL_VARIABLES table and compare the result with
default values.
Answer: C
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NO.4 A Mysql Server has been running an existing application successfully for six months.
The my.cnf is adjusted to contain the following additional configuration:
[mysqld]
Default-authentication-plugin=sha256_password
The Mysql Server is restarted without error.
What effect will the new configuration have in existing accounts?
A. They will have their passwords updated on start-up to sha256_password format.
B. They will have to change their password the next time they login to the server.
C. They are not affected by this configuration change.
D. They all connect via the secure sha256_password algorithm without any configuration change.
Answer: D
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Reference: http://dev.mysql.com/doc/refman/ 5.6 /en/sha256-authentication-plugin.html
NO.5 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. Only the first partition (p1) will be dropped as only one can be dropped at any time.
B. All data in p1 and p3 partitions are removed, but the table definition remains unchanged.
C. A syntax error will result as you cannot specify more than one partition in the same statement.
D. All data in pi and p3 partitions are removed and the table definition is changed.
Answer: B
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Reference: http://docs.oracle.com/cd/F49540_01 /DOC/server.815 /a67772 /partiti.htm
NO.6 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 parameters for the login-path. The password is printed in plain text.
B. The command prints all parameters for the login-path. The password is shown only when you
provide the -password option.
C. The command prints all parameter for the login-path. The password is replaced with stars.
D. The command prints the encrypted entry for the login-path. The is only possible to see if an entry
exists.
Answer: C
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NO.7 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.Mysqld acts as an MSI installer and installs the Mysql 5.6 version, with the c: \my-opts.cnf
configuration file.
B.Mysql is installed as the Windows service name Mysql56, and uses c: \my-opts.cnf as the
configuration file
C. An error message is issued because - install is not a valid option for mysqld.
D. A running Mysql 5.6 installation has its runtime configuration updated with the server variables
set in c: \my-opts.cnf.
Answer: B
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NO.8 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. Ensure that none of the attached slaves are using any of the binary logs you want to delete.
B. Use the command PURGE BINARY LOGS and specify a binary log file name or a date and time to
remove unused files.
C. Execute the PURGE BINARY LOGE NOT USED command.
D. Remove all of the binary log files that have a modification date earlier than today.
E. Edit the .index file to remove the files you want to delete.
Answer: D
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