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

1. Index analysis and optimization using ANALYZE and OPTIMIZE statements should...

A) be run when you suspect that a table is heavily fragmented
B) be run once the table reaches 100,000 rows or above
C) be run when more than 5% of the rows are changed by a single statement
D) be run when EXPLAIN SELECT shows that an inordinate amount of rows is expected to be read during query execution
E) generally never be run manually

2. Consider the three binary log files bin.00010, bin.00011 and bin.00012 which you want to restore data from. How should you process these files when using mysqlbinlog to satisfy inter-file dependencies?

A) You can use both of the above statements, i.e. process the files either in a group or separately. All inter-file dependencies will be taken care of with both methods.
B) shell> mysqlbinlog bin.00010 bin.00011 bin.00012 | mysql
C) shell> mysqlbinlog bin.00010 | mysqlshell> mysqlbinlog bin.00011 | mysqlshell> mysqlbinlog bin.00012 |mysql

3. MySQL is a multi-threaded database server. Every connection to the database server is handled by it's own thread.

A) False
B) True

4. Suppose you install a server with a service name of "MySQL5" rather than the default. What sections in the option files will the server use for configuration?

A) [mysqld MySQL5]
B) [MySQL5]
C) [service]
D) [service MySQL5]
E) [mysqld]

5. Which of the following statements are true for the MERGE storage engine?

A) Underlying MyISAM tables are read-locked when you issue a statement that modifies a MERGE table.
B) To LOCK a MERGE table, you need to lock all underlying MyISAM tables as well.
C) Underlying MyISAM tables are write-locked when you issue a SELECT statement on a MERGE table.
D) Underlying MyISAM tables are write-locked when you issue a statement that modifies a MERGE table.
E) It uses row-level locking.
F) Underlying MyISAM tables are read-locked when you issue a SELECT statement on a MERGE table.
G) To LOCK a MERGE table, it is sufficient to lock just that table.
H) It uses table-level locking.

Solutions: