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最新的 MySQL Database Administration 1Z0-908 免費考試真題 (Q25-Q30):

問題 #25
Examine this MySQL Shell command:
dba.rebootClusterFromCompleteOutage()
Which two statements are true? (Choose two.)

A. It only starts all InnoDB Cluster instances.
B. It only stops and restarts all InnoDB Cluster instances.
C. It picks the minimum number of instances necessary to rebuild the quorum and reconfigures InnoDB Cluster.
D. It performs InnoDB Cluster instances rolling restart.
E. It stops and restarts all InnoDB Cluster instances and initializes the metadata.
F. It reconfigures InnoDB Cluster if the cluster was stopped.
G. It is not mandatory that all instances are running and reachable before running the command.

答案：D,G

問題 #26
Which two are true about binary logs used in asynchronous replication? (Choose two.)

A. They are pushed from the master to the slave.
B. They contain events that describe all queries run on the master.
C. They are pulled from the master to the slave.
D. They contain events that describe database changes on the master.
E. They contain events that describe only administrative commands run on the master.

答案：A,D

解題說明：
Explanation/Reference: https://www.oracle.com/technetwork/community/developer-day/mysql-replication-presentation-
485890.pdf (14)

問題 #27
You are asked to review possible options for a new MySQL instance. It will be a large, busy reporting data warehousing instance.
[mysql]
innodb_data_file_path=
Which two configurations would satisfy long-term storage demands? (Choose two.)

A. ibdatal:12M:autoextend;ibdata2:12M:autoextend
B. ibdatal:12M;ibdata2:12M;ibdata3:12M
C. ibdatal:12M:autoextend
D. ibdatal:12M;/tmp/ibdata2:12M:autoextend
E. ibdatal:12M;ibdata2:12M:autoextend
F. ibdatal:12M

答案：B,F

問題 #28
You have configured MySQL Enterprise Monitor to monitor your MySQL server.
Which four features are available? (Choose four.)

A. monitoring the availability of the MySQL instance
B. tracing import and export with mysqidump
C. starting and stopping the MySQL instance
D. analyzing executed MySQL queries
E. deploying the MySQL agent on supported target operating system
F. creating e-mail alerts and SNMP traps for MySQL warnings
G. monitoring of NDB Cluster API nodes

答案：A,B,D,F

問題 #29
A clean shutdown was performed with innodb_fast_shutdown=0.
While you were manipulating files, all files were accidentally deleted from the top-level data directory.
Which two files must be restored from backup to allow the DB to restart cleanly? (Choose two.)

A. undo_001
B. ib_buffer_pool
C. mysql.ibd
D. ib_logfile0
E. ibdata1
F. ibtmp1

答案：B,C

問題 #30
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