MYSQL 1Z0-873

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MYSQL 1Z0-873 Exam Syllabus Topics:

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

Question #1
Which of the following are effects of defining foreign keys in InnoDB tables without specifying either ON UPDATE or ON DELETE?

A. InnoDB will disallow any delete or update on the primary key on a parent record that may have corresponding child records.
B. InnoDB will disallow foreign keys without specifying either ON UPDATE or ON DELETE.
C. InnoDB will allow both deletes and updates on the primary key on a parent record even if they have corresponding child records.
D. InnoDB will disallow any delete or update on the primary key regardless if there is a corresponding child record or not.

Question #2
Which of the following statements best describe the purpose of the general query log and how you enable it?

A. The purpose is to record when a client connects or disconnects and record every SQL statement issued to the server.
B. The general query log is enabled with the --log or --log=file_name option.
C. The purpose is to record SQL statements that are issued to the server for use when restoring backups.
D. The general query log is enabled with the --general-log or --general-log=file_name option.

Question #3
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. Once the backup files from 03:00 have been restored, there is nothing more that can be done to restore the database files.
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. 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.

Question #4
The CHECK TABLE command should be used...

A. To make sure a table has no structural problems.
B. To find out why a query takes a long time to execute on a given table.
C. To make sure that no table data are corrupted.
D. to improve performance by updating index distribution statistics on InnoDB tables.
E. To repair table structure problems.

Question #5
Assume you compile MySQL from source and invoke configure with the following options.
--with-charset=latin1 --with-extra-charsets=utf8,ucs2
Compared to a standard binary installation that contains many more character sets, which of the following statements is/are true?

A. The compiled version will use less memory, because only a few character sets will be loaded by the server.
B. The compiled version will use less file handles, because only a few files need to be opened when the server is started.
C. The compiled version will use less disk space, because only a few character sets will be installed on disk.

Solutions: