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Vendor: Oracle
Exam Code: 1Z0-883
Exam Name: MySQL 5.6 Database Administrator
Certification: Oracle Database Application Development
Total Questions: 100 Q&A
Updated on: Nov 14, 2024
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What are two methods of taking a binary backup of a Mysql Server using InnoDB storage engine?
A. Mysql Enterprise Backup
B. Mysqldump with binary-data option
C. Mysqlhotcopy
D. File system snapshots
E. Mysqldumpslow
A MySQL replication slave is set up as follows: User all InnoDB tables Receives ROW-based binary logs Has the read-only option
The replication slave has been found in an error state.
You check the MySQL error log file and find the following entries:
2013-08-27 13:55:44 9056 [ERROR] Slave SQL: Could not execute Write_rows event on table test.tl; Duplicate entry `3' for key'PRIMARY' , Error_code: 1062; handler error HA_ERR_FOUND_DUPP_KEY; the event's master log 56_master-bin.000003, end_log_pas 653, Error_code: 1062 2013-08-27 13:55:44 9056 [Warning] Salve: Duplicate entry `3' for key `PRIMARY' Error_code: 1062 2013-08-27 13:55:44 9056 [ERROR] Error running query, slave SQL thread aborted. Fix the problem, and restart the slave SQL thread with "SLAVE START", We stopped at log `56_master- bin.000003' position
What are two possible causes for this error to occur?
A. The slave was created with mysqldump u root p skip-lock-table--all-databases > /data/data.sql
B. The slave user does have INSERT, UPDATE, or DELETE permission and cannot execute the write_rows function.
C. For tables with UNIQUE keys, statement-based replication must be used maintain integrity.
D. The root user on the slave has executed FLUSH LOGS, causing the relay-log to doublewrite.
E. The applications have the SUPER privilege, which allows them to update rows.
MySQL is installed on a Linux server and has the following configuration:
[mysqld]
User=mysql
Datadir=/data/mysql
As the `root' user, change the datadir location by executing:
Shell> cp R /var/lib/mysql/data/mysql/
Shell> chown R mysql /data/mysql/
What is the purpose of changing ownership of datadir to the `mysql' user?
A. MySQL cannot be run as the root user.
B. MySQL requires correct file ownership while remaining secure.
C. MySQL needs to be run as the root user, but file cannot be owned by it.
D. The mysqld process requires all permissions within datadir to be the same.
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