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

1. Which of the following (series of) statements will leave the three tables A, B and C locked for reading, writing and reading respectively once all statements have been executed?

A) mysql> LOCK TABLES A READ, B WRITE, C READ;
B) mysql> LOCK TABLES A;mysql> LOCK TABLES B;mysql> LOCK TABLES C;
C) mysql> LOCK TABLES A READ;mysql> LOCK TABLES B WRITE;mysql> LOCK TABLES C READ;
D) LOCK TABLES A, B, C READ, WRITE, READ;

2. Which of following list the default order in which option files are read on UNIX?

A) ~/.my.cnf, $MYSQL_HOME/my.cnf, and /etc/my.cnf
B) $MYSQL_HOME/my.cnf, /etc/my.cnf, and ~/.my.cnf
C) ~/.my.cnf, /etc/my.cnf, and $MYSQL_HOME/my.cnf
D) /etc/my.cnf, $MYSQL_HOME/my.cnf, and ~/.my.cnf
E) /etc/my.cnf, ~/.my.cnf, and $MYSQL_HOME/my.cnf

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

4. The my.cnf file contains the following entries:
innodb_data_home_dir =
innodb_data_file_path = /ibdata/ibdata1:50M;/disk2/ibdata2:50M:autoextend
Which of the following statements are true?

A) There are two InnoDB data files
B) The initial size of the InnoDB data files on server startup will be set to 50MB. If more space is needed, another 50MB will be allocated.
C) There are three InnoDB data files
D) The total minimum size of the InnoDB data files is 100MB
E) The total maximum size of the InnoDB data files is 100MB
F) The data files will be stored below the default data directory

5. Suppose your are adding rows to a MyISAM table and the server runs out of disk space. What will happen?

A) The server suspends operations on all MyISAM tables until space becomes available.
B) An error message will be returned to the client.
C) The server will crash.
D) The server suspends that INSERT operation until space becomes available.

Solutions: