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MYSQL MySQL 5.0 Database Administrator Certified Professional Exam, Part I Sample Questions:

1. When you upgrade from one version of MySQL to another which of these steps are considered necessary?

A) Start the new server
B) None of the above
C) Backup your databases
D) Check the MySQL Reference Manual upgrading section and read the parts that concern your upgrade
E) Install the new version of MySQL on top of the existing version
F) Stop the MySQL server

2. mysqldump can be instructed to include commands to drop and recreate tables before trying to create or load data.

A) False
B) True

3. What are some properties of using LOCK TABLE?

A) Using LOCK TABLE sometimes decreases the amount disk reads and writes needed for a group of statements.
B) It can only be used with the MyISAM storage engine.
C) All tables must be locked in a single statement.
D) Less work is required by the server to acquire and release locks.
E) It creates more disk activity.

4. The MySQL server host crashes at 10:00 in the morning, and is brought back online at 10:30. In order to ensure that all data are consistent, a copy is first made of the table, tablespace and log files currently on the server host, and these files are then restored from a backup made at 03:00 the same morning. What should be done in order to bring the database to the state it was at just before the server host crashed?

A) The binary logs recorded after the backup at 03:00 should be re-applied to make the database file consistent with the state just before the crash.
B) The procedure described is wrong; instead, the mysqlcheck utility should be used and only if that fails should backup copies be restored.
C) The mysql_restore utility should be used to update the server to its last known state.
D) Once the backup files from 03:00 have been restored, there is nothing more that can be done to restore the database files.

5. Which of the following SQL constructs are not available with all storage engines, i.e. which are storage engine dependent?

A) OPTIMIZE TABLE only works for tables managed by storage engines that perform table level locking, such as MyISAM.
B) BEGIN and ROLLBACK have an effect only for tables managed by transactional storage engines, such as InnoDB.
C) LOAD DATA INFILE only works for tables managed by disk based storage engines, such as InnoDB orMyISAM.
D) Some index types are available only for particular storage engines. For example, only the MyISAMengine supports full-text or spatial indexes.

Solutions: